Most liquids contract when they freeze but water expands, making it less dense when it becomes ice. When broken (hydrolyzed), the high-energy phosphate bonds in the ATP molecule release the energy used to do cellular work. is a poor solvent since few things dissolve in it. B) It is an unusually large cluster that has a lot of gravity. Energy is defined as the capacity to do work, or to put matter into motion. Both atoms and molecules are held together by a form of potential energy called chemical energy (opens in new tab), according to the U.S. Energy Information Administration. BECs are also used to simulate conditions that might exist in black holes. A) observations of the speeds of individual galaxies in clusters Name each of the below as an atomic element, a molecular element, or a compound. d) Methane(CH4). (b) Chemical or Physical, Gas at room temperature Which of the following statement does NOT describe matter? The swimmer's body contains a lower concentration of electrolytes (salts) compared to the freshwater lake H2 + O H2O b.) B) No, because expansion of the universe affects only empty space, not space in which matter is present. Matter have both physical and chemical propertiesb. Therefore, they will form similar types and numbers of bonds with other atoms. It's a copper-based mineral known as Herbertsmithite, named after British mineralogist Herbert Smith. Which of the following statement is not true regarding the characteristic of matter? ATP Atomic weight is equal to the number of protons and neutrons in the nucleus. Plasma is not a common state of matter here on Earth, but it may be the most common state of matter in the universe, according to the Jefferson Laboratory (opens in new tab). A) measuring the speeds of galaxies orbiting the cluster's center Which compounds, NaH, PH3, CH4, IBr3 are ionic compounds? Hence, it is matters. Energy may be converted from one form to another, but some energy is always unusable ("lost" as heat) in such transformations. A. True There are many definitions. CH4 a. I and II b. II and III c. II and IV d. II, III and IV e. II only, Which pair of elements cannot combine to form a chemical compound? 1.Nonpolar molecules have partial charges which can lead to hydrogen bonding. The substrate absorbs chemical energy from the enzyme after binding to its active site. Which of the following substances react with oxygen? (a) MgCl_2 (b) CaCO_3 (c) Na_2Cl. Give the name of the following compounds. ranges from 1 to 7 The major function of DNA is to provide the genetic instructions for protein synthesis. The enzyme's active site binds to the substrate(s) on which it acts, temporarily forming an enzyme-substrate complex. A. A) Most dark matter probably consists of weakly interacting particles of a type that we have not yet identified. In fact, many of the special properties of water derive from its extensive hydrogen bonding capacity. storage of genetic information This is your TOMORROW X TOGETHER fan club manager. A) the structure of any large galaxy. A solid will retain its shape; the particles are not free to move around. A) It interacts only through the weak force. 15. The swimmer's body contains a higher concentration of electrolytes (salts) compared to the freshwater lake Ultimately, genes and experienceswork together to construct brain architecture. a. Li b. CO c. Cf d. CF4, Which of the following represent elements and which represent compounds? Human A&P 1 Mastering HW Set 3: Biochemistry, Mastering A&P Chapter 3 - Cells: The Living U, Mastering A&P Chapter 2 - Chemistry Comes Ali, Bruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore E. Brown, Chapter 35 - 40 review questions (EMT Exam 12), Birth to 5 Midterm Exam Study Guide Unit 1. Hello. Hydrogen fat. Which of the following is a FALSE statement about carbohydrates? Which of the following compounds is an organic compound? There are many different methods to categorize and characterize matter. 2. D) Within individual galaxies, dark matter is always concentrated near the galactic center, and within clusters it is always concentrated near the cluster center. Which element forms the most acidic oxide? A) Non Metals B) Metals C) Molecular Compounds D) All of the answers are correct, Which of the following compounds contains ionic bonds? For example, a swinging pendulum consists of matter, but its energy of motion is not matter. You Can Be Yourself. Combining two elements to form a compound is called what? 1. B) They are subatomic particles. proteins This homogenous mixture is called a solution. C) WIMPs Whether due to sweating bullets in a hot yoga class or spending a day basking in the summer sun, dehydration is something we all experience from time to time. a. CH4 b. NaH c. PH3 d. IBr3 e. none of the above are ionic compounds. 3. C) Using Einstein's general theory of relativity, we can calculate the cluster's mass from the precise way in which it distorts the light of galaxies behind it. Home / Uncategorized / which of the following is not a form of matter. Which of the following is a chemical that has an amine group and an organic acid group, but does not contain a peptide bond? For example, when you put ice into a glass of water and leave it out at room temperature, the ice and water will eventually come to the same temperature. III < I < II, Weakest to strongest From what types of damage does the skin protect the body? Periventricular leukoencephalopathy (PVL) is a pathologic process that has attracted little attention in neurodiagnosis. New York, D) gravitational lensing around galaxy clusters False. Heres how it works. Which of the following is NOT considered a form of matter? The four natural states of matter are: Solids, liquids, gases and plasma. Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter. BECs are used to study quantum mechanics on a macroscopic level. C) The actual density of dark matter and luminous matter combined is no more than about 1% of the critical density. III. What is a covalent compound? All of the listed responses are true. Which of the following is NOT one of the three basic steps involved in enzyme activity? This problem has been solved! Quarks combine into protons and neutrons and, along with electrons, form atoms of the elements of the periodic table, such as hydrogen, oxygen, and iron. Two matters will be fixed going forward. Lipids used as energy reserves in the body are stored as molecules of phospholipids. 1. What is the common ending for the nonmetal portion of the name? If the core's mass is more than about three times the mass of the Sun, the equations showed, the force of gravity overwhelms all other forces and produces a black hole. What is the name of a substance made of two or more elements, one being carbon? The liquid propane in a barbecue ignites upon contact with a spark. 8) In general, when we compare the mass of a galaxy or cluster of galaxies to the amount of light it emits (that is, when we look at it mass-to-light ratio), we expect that (a) Particles of a matter are randomly moving in all directions. C) There is no longer any doubt that dark matter is made mostly of WIMPs. Determine whether the following compound is a covalent compound or not: NH_3. (Image credit: Research groups of Professor Andreas Zumbusch and Professor Matthias Fuchs). Thus it is showing inertia. What element X is most likely to react to form the compound XF5? SBS Inkigayo Pre-recording 1 + 2 - Scheduled Recording Time: 8:35 AM / 9:45 AM, Sunday, February 12, 2023 (KST) - Roll Call Location: In . a) CH3OH b) HOClO c) NH4CN d) NH3 e) N2O3. a. hydrogen gas b. sodium chloride (table salt) c. glucose d. neon e. copper sulfate f. titanium, Which pair of elements is most likely to form an ionic compound? Which of the following is not a compound? amino acid 2. So we've created the antidote. oxygen gas b.) It is a matter but not a state of matter. a phosphate group. JENELLE Evans has posted a pre-gym selfie onto social media, displaying her new gains in tight workout clothes. Types of things that are not considered matter include any type of energy, and abstract concepts. B) Dark matter consists 90% of neutrinos and 10% of WIMPs. Kinetic energy pushes the reactants to an energy level that encourages their interaction and the rearrangement of their chemical bonds. InstagramTeen Mom star Jenelle Evans took a break from parenting to post a quick selfie on Instagram[/caption] Instagram/ j_evans1219The mother-of-three wore tight gym clothes in preparation for a . When a gas is put under pressure by reducing the volume of the container, the space between particles is reduced and the gas is compressed, according to NASA's Glenn Research Center. All matter has the same propertiesc. all of the above. bonding of amine group to amine group You're using your gray matter whenever you make a decision or solve a problem. What is the primary energy-transferring molecule in cells? D) Newton's universal law of gravitation predicts how mass can distort light, so we can apply Newton's law to determine the mass of the cluster. B) measurements of the rotation curve for the universe E) all of the above. Peptides bonds are used to join amino acids (monomers) together, forming larger molecules (polymers) ranging in size from small polypeptides to large proteins. Physical, Polymerizes to form polyethylene. Most famously, black holes were predicted by Einstein's theory of general relativity, which showed that when a massive star dies, it leaves behind a small, dense remnant core. Lichtenstein used comic strips as subject matter because. C) dark matter represents much more mass and extends much further from the galactic center than the visible stars of the Milky Way. What element is representative, nonmetallic, belongs to group VA, and forms a covalent compound with oxygen? In the biosphere, the total amount of matter remains constant over time, whereas the total amount of energy decreases over time. active sites buffer. a. O3: molecular compound b. Al: atomic compound c. NH4OH: molecular compound d. H2: atomic element e. None of the above is correct. A d. be human made. It's common to use "matter" when referring to a singular issue (as a noun). The reaction in the presence of enzyme will form a larger proportion of product. A. BrCH_2CH_2Cl B. ClCH_2CO_2H C. ICH_2CH_2OH D. FCH_2CH_2NH_2 E. HOCH_2\ COCl, Which of the following substances is correctly categorized? D) velocities and positions of galaxies in clusters of galaxies an R group Yes, because the oxygen would not bond equally to the two hydrogen atoms. five. Which of the following are ionic compounds? Sodium gives up its valence shell electron (becoming a cation) to drop back to a stable valence shell, and chlorine gains one electron (becoming an anion) to fill its valence shell and become stable. Matter is a general term describing any 'physical substance'. c) NaBr is a covalent compound and CO2 is an ionic compound. A) If we include dark matter, the actual density equals the critical density. D) The acceleration probably is not real, and what we attribute to acceleration is probably just a misinterpretation of the data. C and Fe b. Na and Cl c. Al and C d. H and O. 3) Why do we believe 90 percent of the mass of the Milky Way is in the form of dark matter? NY 10036. SO2, PCl3, NaBr, PbO, AlF3. Salts are ionic compounds that contribute to the ability of nerves to conduct an electrical current. small atoms with 6 or 6 valence electrons tend to be electronegative home bargains hair styling products. The states of matter are solid, liquid, gas, or plasma. a. NO2 b. PCl5 c. ICl. (A) SrCl2 (B) COCl2 (C) N2O (D) Kr, Which of the following chemical species is a cation? B. 13) Based on current evidence, how does the actual average density of matter in the universe compare to the critical density? A) matter that we have identified from its gravitational effects but that we cannot see in any wavelength of light B) matter that may inhabit dark areas of the cosmos where we see nothing at all C) matter consisting of black holes a. magnesium and fluorine b. nitrogen and sulfur c. oxygen and chlorine d. sodium and aluminum. MgO2 Mg + O2 c.) MgSO4 + 2NaCl MgCl2 + Na2SO4 d.) 2Na + Cl2 2NaCl b.) 18 B. Fermions normally like to be alone, but to create this matter phase, scientists have to coax them to pair up. D) They tend to orbit at large distances from the galactic center. They all have the same number of protons in their nuclei. 2. b) NaBr is an ionic compound and CO2 is a covalent compound. As a polar molecule, water cannot easily dissociate inorganic compounds. Correct option is B) The matter is something that occupies space and has volume. a. H b. Br c. Se d. Sr, Which of these compounds belongs to the class of substances commonly known as "halohydrins"? for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 10-4 millimeters. The phrase five states of matter is a term to describe everything that makes up the "stuff" in the universe anything that takes up space and has mass is matter. the attraction between their respective nuclei is non-polar They would all be likely to form positive ions. A) Stars would cease to exist when the dark matter is gone. Water vapor becomes ice or frost when the air touching a solid, such as a blade of grass, is cooler than the rest of the air. Compared to the freshwater lake, the swimmer's body is a better conductor of an electrical current and is therefore at risk for electrical shock during an electrical storm because __________. 5) What evidence suggests that the Milky Way contains dark matter? What do these four elements have in common? The identity of each unique amino acid is determined by the structure of its R groupnote differences within the green rectangular area in amino acids (b) through (d). 2. 2. Carbon iv oxide is a combination of which elements? Hydrogen bonding between certain amine and carboxyl groups creates alpha helices and beta-pleated sheets. RNA carries out the orders for protein synthesis issued by DNA. Weak acids and bases dissociate (ionize) partially and reversibly, whereas strong acids and bases dissociate completely and irreversibly. When a solid is converted directly into a gas without going through a liquid phase, the process is known as sublimation. Please read the notice below before participating in the event. The swimmer's body contains a higher concentration of electrolytes (salts) compared to the freshwater lake Final Answer: Chairs, air, smells, nuts, cold drinks, and perfume smell: all matter since they take up space and contain material. Which organic molecules form the major structural materials of the body? "Matter" is the singular form, and "matters" is the plural: One matter has been dealt with. Writing isn't wam, bam, and done - it's a process like any other. 17) What is the primary form of evidence that has led astronomers to conclude that the expansion of the universe is accelerating? A) luminous matter emits white light, much like the light reflected from icebergs. Triglycerides are composed of three fatty acids and one glycerol and are stable because they do not dissolve in water. No, because there would no longer be a difference in electronegativity between the oxygen and hydrogen atoms. 4. When to Use "Matter" "Matter" is correct as a singular noun form or when you are working with first-person singular or plural pronouns. Chemical properties like how one form of matter interacts with another type of matter, are used by chemists to define matter. carbohydrates Which four elements comprise approximately 96% of our body weight? Plasma is a form of matter that exists when atoms are in an excited state. Physical changes can also be caused by motion and pressure, according to the Abridged Science for High School Students (opens in new tab) by H.Messel. These reactions yield products with less energy than the initial reactants, along with energy that can be harvested for other uses. <br><br>I'm skilled at thinking creatively (user experience (UX) design) to solve problems across projects and bringing diverse stakeholders together to deliver . It is the second most common acquired central nervous system abnormality in neonates, outranked only by germinal matrix hemorrhage. Because they don't reach equilibrium or a steady state, they are able to dodge the second law of thermodynamics, which states that the disorder, or entropy, of a closed system, always increases. ammonia (NH3). A) There are not enough neutrinos to make up all the dark matter. a. XeF6 b. OF2 c. BrF, Which of the following compounds is a non-conductor in the solid but a conductor when molten? As the Advisor, Talent Attraction & Acquisition (TAA), you will be responsible for fulfilling our full life cycle recruitment needs for Save the Children US, ensuring we are able to attract both qualified and engaged talent to deliver our mission for children at home and around the world. All rights reserved. ionic bond. Many play vital roles in cell function. The weight of matter remains the same wherever it is located. 2. User: All of the following are forms of energy a living organism can use except: Weegy: All of the following are forms of energy a living organism can use except nuclear. Identify the spectator ions in the neutralization of lithium hydroxide, LiOH, with hydrobromic acid, HBr. B) Planetary systems would expand and disperse. Which is the more basic in water in the given pair of compounds. Dehydration synthesis refers to the joining of molecules by the removal of water. 3. Less energy input is required to start the reaction in the presence of enzyme. Which of the following is an example of a decomposition reaction? Save 50% on any of our courses through March 31st, 2023! Which of the following is NOT a compound? phosphorus and nitrogen Which element can form an acidic oxide: Si or K. 1. Createyouraccount. C) Neither dark energy nor dark matter really exist. A gas has no definite shape or volume. Atomic weight is determined by the number of protons in an atom of a given element. It's found in Chile, Iran, Arizona, and Greece. two nitrogen atoms Monosaccharides are joined to form polysaccharides, and amino acids are joined to form proteins by this process. However, there are several things, such as heat, light and other forms of energy, that are not considered matter because they lack mass. C) stellar motions in elliptical galaxies Our experts can answer your tough homework and study questions. A) Dark energy is the dominant form of energy in the cosmos. See Answer What type of bond is formed between the oxygen atom of one water molecule and the hydrogen atom of another water molecule? amino acid A) The cause of the acceleration is well-understood, and attributed to the particles that make up dark energy. B) The expansion rate has slowed by the amount expected for a universe with the critical density (a critical universe). When a substance transforms from a liquid to a solid, molecules are arranged in a crystalline structure for glass, this doesnt happen and particles are frozen in place before crystallisation occurs. A chemical change is defined as a change in form of a substance in which a change in the chemical composition of the substance occurs. True 9) If WIMPs really exist and make up most of the dark matter in galaxies, which of the following is not one of their characteristics? A) B, B) Tl, C) Al, D) In, E) Ga. What is the formula for an ionic compound that contains the elements magnesium and chlorine? E) Big Bang nucleosynthesis constrains how many neutrinos there are in the Universe. Is the name of the first element in the compound different from the element? At this extremely low temperature, molecular motion comes very close to stopping. You can find the biggest benefit," he said. Compounds are formed by chemical bonds between different kinds of atoms. a. phosphorus b. nitrogen c. oxygen d. carbon. exergonic; endergonic Which of the following statements regarding matter is FALSE? hyperbolic nitrogen What is the primary energy-transferring molecule in cells? Matter is anything that has mass and volume.d. B) We have moderately strong evidence that the acceleration is real, but essentially no idea what is causing it. water Vapour is the type of substance which forms when liquid converts into the gaseous phase. Which of the binary compounds formed by the following pairs of elements are considered ionic compounds? a) C and Fe. Things That Are Not Matter Here are several things that don't meet the definition of matter: Time Sound Sunlight Rainbow Love Thoughts Gravity Microwaves Heat Memories Information Reflections Energy Carbon has four electrons in its valence (outermost) electron shell. Everything that exists can be classed as either a type of matter or a form of energy. hydrogen bond C) the overall shape of the observable universe. And removing energy from liquid water causes it to become ice (a solid). A) It is a name given to whatever is causing the expansion of the universe to accelerate with time. the breaking of chemical bonds within the reactants. a) Carbon dioxide. The long-term stability of triglycerides makes them important energy storage molecules. blood c.) X rays d.) bone c.) X rays Which of the following is an example of a decomposition reaction? 2. Several pieces of graphite from a mechanical pencil are (a) broken into tiny pieces. Explain. Copper metal turns green on exposure to air and water. My responsibilities . Which of the following is a compound? B) The actual density, even with dark matter included, is less than about a third of the critical density. Bose-Einstein condensates, however, are only made in the lab. D) The overall shape of the cluster is that of a lens. Find the largest possible domain and the corresponding range of each function. Which of the following statements is true regarding the reaction without an enzyme compared to the one with an enzyme? Electrons are transferred from hydrogen to oxygen during the formation of an ionic bond. 1) C6H5SH 2) S2Cl2 3) SiO2 4) ZnBr2 5) C3H5OH, Which of the following compounds corresponds to the spectrum shown here? 2. Describe the compounds that form between nonmetals. 12) What is the mass-to-light ratio for the inner region of the Milky Way Galaxy, in units of solar masses per solar luminosity? Example: The book on the desk remains in rest position until it is picked up from that desk. exchange; equilibrium. What additional molecule is produced when fatty acids are bonded to glycerol to make a triglyceride? By contrast, mass is not a substance but rather a quantitative property of matter and other substances or systems; various types of mass are defined within physics - including but not limited to rest mass, inertial mass, relativistic mass, mass-energy . The polarity of water easily breaks the charges between the oppositely charged ions in the compound. 4. E) It is the only type of particle that interacts through the weak force. D) Dark energy exists but dark matter does not. for example, rusting, rotting, combustion, etc. B) Dark energy does not exist and there is much more dark matter than we are aware of to date. However, not all proteins are construction materials. What is the chemical compound of Antimony and how to produce it? a colloid "Our experiments provide the kind of evidence for the interplay between critical fluctuations and glassy arrest that the scientific community has been after for quite some time," senior author of the study and Professor of Soft Condensed Matter Theory at the University of Konstanz Matthias Fuchs, said in a statement (opens in new tab). an amine group and an acid group Triglycerides and phospholipids are two of the three major types of lipids. Condensation occurs when a gas loses energy and comes together to form a liquid, according to the U.S. Geological Survey. 3. Carbohydrates consist of monomers called simple sugars. Which of the following pairs of elements will not form ionic compounds? Study with Quizlet and memorize flashcards containing terms like Which of the following is NOT an example of matter?, Which of the following is a physical property of a substance? The substrate is a reactant in an enzyme-catalyzed reaction. Fermionic condensates are another type of lab-made matter. DNA provides the basic instructions for building every protein in the body. How many hydrogen atoms will a single carbon atom bond with to form a stable molecule? c. Purines pair with purines, and pyrimidines pair with pyrimidines. one potassium atom and one fluorine atom B. For this to be the case, which of the following would have to be true (based on current understanding)? The products of exergonic reactions contain more potential energy than the reactants that form them Matter is made up of atom which is formed by the combination of subatomic particles. They are not types of matter, but forms of energy. A fire consists of hot gases and plasma (matter), yet gives off light and heat (not matter). A. All of the chemical energy released from the hydrolysis of ATP can be used by the cell to do work. (Image), Which element is present in all organic compounds? Which of the following compounds contains an ionic bond? is based on the salinity of a solution 2 Tertiary protein structure emerges when there is more than one peptide chain in a protein. Buffers can do this because they consist of a combination of a weak acid and a corresponding weak base. one Which of the following is NOT considered a form of matter? Visit our corporate site (opens in new tab). act as biological catalyst Classify the following as either an elemental substance or a compound: Sulfur dioxide. A metal surface becomes dull because of continued abrasion. This figure shows a dehydration synthesis reaction between two monomers forming, resulting in a larger molecule. molecule 1.Nonpolar molecules have partial charges which can lead to hydrogen bonding. a.) The seed coat's most important function is to provide a) a nonstressful . False. It's not a new type of matter, but it could. You can just be yourself. Suppose the following compounds were all dissolved in separate beakers of water in the same manner as the salt in the figure. What kind of elements will form an ionic compound? D) The universe would cease its expansion. The left reaction is exergonic, and the right reaction is endergonic. 1. substrates SBS Inkigayo Live Premiere - Scheduled Time of Broadcast: 3:50 PM, Sunday, March 5, 2023 (KST) - Check-in . The biosphere can be defined as a closed system in terms of matter because matter does not enter or exit. Chemical D) The question is nonsensegas temperature cannot possibly tell us anything about mass. Both reactions are endergonic. Solids include things like solid ice, sugar, rock, wood, etc. hydrolase salt deposits in many regions of the body When the substance reaches a certain combination of temperature and pressure, its melting point, the solid will begin to melt and turn into a liquid. For binary ionic compounds, what type of element is always listed first (metal or nonmetal)? impaired nerve impulse transmission Become a Study.com member to unlock this answer! Altered Structure Brains are composed of two types of matter: gray and white. (Comparison of activation energy with and without an enzyme.) A) No, because the universe is not old enough yet for these objects to have begun their expansion. oxidase But that phrase is actually outdated, as there are many more states of matter than that. A. corrosiveness B. boiling point C. toxicity D. flammability, Which of the following is NOT an example of a physical property? C) It bends or distorts the light coming from galaxies located behind it. The construction of the truck is such that a transmission heat gain occurs at a rate of 80W/C80 \mathrm{~W} /{ }^{\circ} \mathrm{C}80W/C. When you purchase through links on our site, we may earn an affiliate commission. A. water B. sodium C. chlorine D. oxygen. H2 + O2 H2O dehydration synthesis; hydrolysis Biology, 21.06.2019 20:00. Once dissociated, the sodium and chloride ions would be expected to disperse uniformly amongst the surrounding water molecules. Energy "lost" during an energy conversion refers to the energy that cannot be used to do work Solve the IVP. Because of this, particles in a solid have very low kinetic energy. A. Binary compound B. Ionic compound C. Molecular compound D. Which nonmetals could form an magnesium ionic compound with the form MgX2 (where X represents the nonmetal). four B) Neutrinos do not have any mass; they interact only through the weak force. Predict the type of bond that would be necessary to join the oxygens to the carbon to form a stable molecule. Both letters pointed out that chemical abortions are riskier than first-trimester surgical abortions, with the most recent letter citing a recent study by the American College of Obstetrics and Gynecologists (ACOG), which found that chemical abortions were 5.96 times as likely to have complications as aspiration abortions. 10) When we see that a spectral line of a galaxy is broadened, that is, spanning a range of wavelengths, we conclude that, 11) A large mass-to-light ratio for a galaxy indicates that. Chemically, the triphosphate tail of ATP can be compared to a tightly coiled spring ready to uncoil with tremendous energy when the catch is released. Small atoms with 6 or 7 valence shell electrons tend to be electronegative. Answer:Plasma.Explanation:The three common forms of matter are liquids, solids, and gases. The white matter connects different brain regions and helps them communicate with one another. Classify the following as elemental substances or compounds: Ammonia. A. Cl and K B. P and Br C. Cu and K D. Na and K. What combination of elements (metals and/or nonmetals) are involved in molecular and ionic compounds? Murdaugh Murders Podcast co-hosts Mandy Matney, Liz Farrell and everyone's favorite attorney Eric Bland take a hard look at Dick and Jim's last-minute attempt to stop a blood spatter expert from testifying against Alex Murdaugh this week.

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