The left reaction is exergonic, and the right reaction is endergonic. Answer 2: Light and sound are not regarded as forms of matter. 4. Lipids used as energy reserves in the body are stored as molecules of phospholipids. A) Hubble's law of expansion applies only to the space between galaxies. c. Purines pair with purines, and pyrimidines pair with pyrimidines. Describe the compounds that form between nonmetals. Final Answer: Chairs, air, smells, nuts, cold drinks, and perfume smell: all matter since they take up space and contain material. A) the flat rotation curves of spiral galaxies Which of the following compounds is an ionic compound? Therefore, it will form covalent bonds with four hydrogen atoms. Which of the following statements is true concerning the characteristics of either compounds or mixtures? MgO2 Mg + O2 potassium chloride (KCl) 1. 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. What is the difference between kinetic and potential energy? A) The lensing allows us to determine the orbital speeds of galaxies in the cluster, so that we can determine the mass of the cluster from the orbital velocity law. Time crystals are made in the lab and have the ability to cycle between two states of energy without ever losing energy. Physical, Mixes with acetone Which of the following terms means sustained attention and loss of self-awareness? Find the largest possible domain and the corresponding range of each function. Of the following, which is the most likely source for coarse particulate matter? nonpolar covalent bond protein A) massive blue stars Which of the following is a physical property of a substance? Yes, because the oxygen would not bond equally to the two hydrogen atoms. Amino acids are linked by peptide bonds to form peptides. a. Tamang sagot sa tanong: 2. 11) Which of the following statements best summarizes current evidence concerning dark matter in individual galaxies and in clusters of galaxies? Nonpolar molecules are the result of unequal electron pair sharing. D) Dark matter probably does not really exist, and rather indicates a fundamental problem in our understanding of gravity. 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? Which of the binary compounds formed by the following pairs of elements are considered ionic compounds? D) the overall arrangement of galaxies, clusters of galaxies, and superclusters in the universe. I love the sweet spot when strategy, execution and leadership come together. 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). f(x)=3x4+5x2f(x)=-3 x^{4}+5 x^{2}f(x)=3x4+5x2. 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. In fact, many of the special properties of water derive from its extensive hydrogen bonding capacity. |Score 1| Janet17 |Points 46337|. Explanation: Matter can be defined as the substance having mass, volume and occupy space. ionic Which of the following is not a subatomic particle? 2. calcium salts in bones. What additional molecule is produced when fatty acids are bonded to glycerol to make a triglyceride? (a) MgCl_2 (b) CaCO_3 (c) Na_2Cl. Tertiary protein structure emerges when there is more than one peptide chain in a protein. 3) The text states that luminous matter in the Milky Way seems to be much like the tip of an iceberg. C. A metal surface becomes dull on exposure to air. C) There is no longer any doubt that dark matter is made mostly of WIMPs. They are all generally unreactive elements. hydrogen Which element forms the most compounds? Adding or removing energy from matter causes a physical change as matter moves from one state to another. Which is the more basic in water in the given pair of compounds. When heat is removed from a liquid, its particles slow down and begin to settle in one location within the substance. Compounds are formed by chemical bonds between different kinds of atoms. the blood becoming too acidic. Enzymes do not provide energy to their substrates. one potassium atom and one fluorine atom Adams seemingly took the result of the poll to mean that 47% of black Americans did not have a favorable view of white people and intimated that he would be changing his approach to racial matters. an amine group Specialties: Mission of Modern: To promote the highest quality of health for patients with skin disease through the provision of empathetic, state-of-the-art medical care. No, because the difference in the pull of oxygen on the bonding electrons would be neutralized. home bargains hair styling products. amino acid A) Dark energy is the dominant form of energy in the cosmos. lipids 4. impaired nerve impulse transmission Bose-Einstein condensates, however, are only made in the lab. Chemical B) Neutrinos do not have any mass; they interact only through the weak force. bonding of amine group to amine group What is the term for compounds composed only of carbon and hydrogen? If the molecules indicated by (A) are amino acids, then the line in the figure indicated by (D) is __________. It then emits flames and smoke. Secondary protein structures involve hydrogen bonding between amine and carboxyl groups. But that phrase is actually outdated, as there are many more states of matter than that. (Image), Which element is present in all organic compounds? oxygen gas b.) hydrogen the formation of chemical bonds between the reactants Therefore, option (C) is incorrect. A) If we include dark matter, the actual density equals the critical density. Suppose the following compounds were all dissolved in separate beakers of water in the same manner as the salt in the figure. 1) Which of the following best summarizes what we mean by dark matter? C and Fe b. Na and Cl c. Al and C d. H and O. Mixtures are homogenous while compounds are heterogeneous, In a solution, the solute is the substance present in the greatest amount. B. Which compounds, NaH, PH3, CH4, IBr3 are ionic compounds? isomerase D) the higher the amount of mass relative to light (higher mass-to-light ratio), the older the galaxy or cluster. small atoms with 6 or 6 valence electrons tend to be electronegative There are many definitions. D) telescope lenses are distorted by gravity. 15) When we speak of the large-scale structure of the universe, we mean 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. exchange; equilibrium. 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. two oxygen atoms. Chemical 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. a. MnS b. MnBr2 c. Mn2O3 d. MnO, Which of the following cations is likely to be hydrated in compounds? a. XeF6 b. OF2 c. BrF, Which of the following compounds is a non-conductor in the solid but a conductor when molten? A) They travel at speeds close to the speed of light. Except for elements with atomic number 1 and 2, all other elements are stable with how many electrons in their outermost (valence) energy level? Which of the two compounds in the pair below is more basic in water? an oxygen atom within a water molecule. Liquid boils when enough heat is added to a liquid to cause vapor bubbles to form below the surface. True Matter is made up of atom which is formed by the combination of subatomic particles. Matter is anything that has mass and volume.d. 4. 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. Which of the following is NOT an example of matter? BECs are also used to simulate conditions that might exist in black holes. When the substance reaches a cool enough temperature at a certain pressure, the freezing point, the liquid becomes a solid. 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. 3. Polar covalent bonds involve the transfer of electrons from electropositive atoms to electronegative atoms. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. It also brought forth a lot of questions since. Classify the following as either an elemental substance or a compound: Sulfur dioxide. User: Which of the following is not a form of energy heat mechanical solar matter. Plasma is a form of matter that exists when atoms are in an excited state. A a. participation. Chemical. 1.Nonpolar molecules have partial charges which can lead to hydrogen bonding. Which of the following is NOT one of the three basic steps involved in enzyme activity? C) Yes, and that is why clusters tend to grow in size with time. NY 10036. Many other states of matter have been created under extreme or exotic conditions. B) The expansion rate has slowed by the amount expected for a universe with the critical density (a critical universe). As the ice melts from heat coming from the water, it will remain at 32 degrees Fahrenheit (0 degrees Celsius) until the entire ice cube melts before continuing to warm. a suspension Which of the following is NOT an example of a physical property? two double bonds A) It interacts only through the weak force. Reactions that release energy are exergonic reactions. The white matter connects different brain regions and helps them communicate with one another. Which of the following statements is true regarding the reactions shown? The products of exergonic reactions contain more potential energy than the reactants that form them The polarity of water allows it to easily dissociate most covalently bound compounds. Which of the following compounds are ionic and which are covalent: N2, CCl4, SiO2, AlCl3, CaCl2, LiBr. Less enegy input is required to start the reaction in the presence of enzyme. Rank the chemical bonds from relatively weakest to strongest. Which response provides the best explanation as to why ionic compounds easily dissociate in water? What is not a example of matter? 3. oxidation; reduction 3. Other exotic states of matter can also be manufactured under extreme conditions in a lab, such as fermionic condensates and time crystals. Small atoms with 6 or 7 valence shell electrons tend to be electronegative. E) gravitational lensing by clusters of galaxies, 1) Which of the following best summarizes what we mean by dark matter? III. a. participation b. content c. artistic form d. subject matter. What is the chemical compound of Antimony and how to produce it? Condensation occurs when a gas loses energy and comes together to form a liquid, according to the U.S. Geological Survey. For this to be the case, which of the following would have to be true (based on current understanding)? 2. Which of the following best describes an isotope? neutral solution a) Ca+ b) NH4+ c) Rb+ d) K+ e) Li+. 15. two 2. Chemical a) C and Fe. Why? The atoms of a polar molecule share electrons equally. II < I < III a structural variation in which different atoms of the same element have different numbers of neutrons. C) The actual density of dark matter and luminous matter combined is no more than about 1% of the critical density. 1) C6H5SH 2) S2Cl2 3) SiO2 4) ZnBr2 5) C3H5OH, Which of the following compounds corresponds to the spectrum shown here? A) measuring the speeds of galaxies orbiting the cluster's center c) NaBr is a covalent compound and CO2 is an ionic compound. All of the following can be considered physical properties EXCEPT: A block of aluminum is (a) ground into aluminum powder and then (b) ignited. You cannot hold, taste, or smell these things. [{Image src='graph3847362846850881619.jpg' alt='graph' caption=''}]. Which compounds are ionic and which are covalent: N2, CCl4, SiO2, AlCl3, CaCl2, LiBr? Energy "lost" during an energy conversion refers to the energy that cannot be used to do work Which of the following pairs of elements is most likely to form an ionic compound? Proteins form the major structural materials of the body. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The swimmer's body contains a lower concentration of electrolytes (salts) compared to the freshwater lake Therefore, the liquid will conform to the shape of its container. MgO2 Mg + O2 In a freshwater lake, there are comparatively few electrolytes (salts) to carry a current away from a swimmer's body. D) faint red stars See Answer Therefore, a solution with a pH of 8.3 is an alkaline (or basic) solution. Which four elements comprise approximately 96% of our body weight? D) velocities and positions of galaxies in clusters of galaxies 2. C) Dark matter is present in individual galaxies, but there is no evidence that it can exist between the galaxies in a cluster. You're using your gray matter whenever you make a decision or solve a problem. Lipids found in the cell membrane are composed of one glycerol and three fatty acid chains and are called phospholipids. Lichtenstein used comic strips as subject matter because. 2. (a) CH4 (b) OF2 (c) K2O (d) Cl2 (e) none of the above. is based on the salinity of a solution 2Na + Cl2 2NaCl, Which of the following is NOT one of the three major types of chemical reactions? D) measuring the temperatures of stars in the halos of the galaxies. What is true about the composition of a compound, no matter where we happen to find the compound? 16) Hubble's constant is related to the age of the universe, but the precise relationship depends on the way in which the expansion rate changes with time. The matter is the substance that has mass and occupies space. c) Al and C. d) N and O. Oxygen Which of the following is not a molecular compound? Visit our corporate site (opens in new tab). express each number in an alternate form. A glass holds H20 in three states of matter: ice (solid), water (liquid) and vapor (gas). Predict the type of bond that would be necessary to join the oxygens to the carbon to form a stable molecule. DNA. What type of chemical bond is most likely to occur between sodium and chlorine? 3. Most liquids contract when they freeze but water expands, making it less dense when it becomes ice. a) The nonmetals are located in the upper left corner. one single bond and one double bond. 3.Gases- In this state, the distances between the molecules are large and the intermolecular forces are negligible. "Abortion pills carry the added risk that when these heightened . The matters are formed/build by atoms. bonding of amine group to acid group acidic solution substrate Name a substance made of two or more elements, none of which is carbon. The enzyme's active site binds to the substrate(s) on which it acts, temporarily forming an enzyme-substrate complex. Because of its polar nature, water is able to form hydrogen bonds. C) The acceleration is very important in the cosmos today, but the evidence indicates that it will eventually slow down, allowing the universe to recollapse. copyright 2003-2023 Homework.Study.com. a) carbon b) antimony c) chlorine d) calcium, Which compound or compounds is (are) most likely to form dication(s)? False Atomic mass is equal to the number of protons and neutrons in the nucleus. a nitrogen-containing base and a pentose sugar Carbon has four electrons in its valence (outermost) electron shell. proteins Non-matter includes the light from a torch, the heat from a fire, and the sound of a police siren. A) Dark matter is the dominant form of mass in both clusters and in individual galaxies. Weegy: Matter is not a form of energy. exchange If you're routinely working more than 45ish hours, you're gonna get a friendly talking-to. Pakistan. Water can form hydrogen and oxygen gas under . Explain. Objective: To test the hypothesis that brain network architecture constrains cross-sectional and longitudinal grey matter alterations across different stages of psychotic illness and to identify whether certain brain regions act as putative epicentres from which volume loss spreads. C) It is the energy of black holes. New York, They all have an incomplete valence electron shell. Which of the following pairs of elements will not form ionic compounds? 9) Which of the following is not one of the three main strategies used to measure the mass of a galaxy clusters? Which of the following is NOT considered a form of matter? a solution carbon dioxide. decomposition All amino acids, such as the four represented in the figure, contain __________. polar covalent bond What is the primary energy-transferring molecule in cells? Sulfur has an atomic number of 16. What element is representative, nonmetallic, belongs to group VA, and forms a covalent compound with oxygen? hydrogen bond Much like solids, liquids (most of which have a lower density than solids) are incredibly difficult to compress. the kinetic energy of the reactants If the ambient temperature is 25C25^{\circ} \mathrm{C}25C, Find how long it will take for a system with a refrigeration capacity of 8kW8 \mathrm{~kW}8kW to precool this truck. Deposition occurs when a gas transforms directly into a solid, without going through the liquid phase. X-rays Select the correct statement about isotopes. Which of these substances is a covalent compound? B) We are so close to these systems that we don't observe their expansion. 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 . Which of these compounds is most likely to be ionic? Increasing the temperature of atoms and molecules increases their kinetic energy Which of the following are meso compounds? When you purchase through links on our site, we may earn an affiliate commission. The four natural states of matter are: Solids, liquids, gases and plasma. This is true. Based on current understanding, how would that affect the universe at that time? 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 .
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