II < I < III You cannot hold, taste, or smell these things. Answers: 2 Show answers Another question on Biology. I love the sweet spot when strategy, execution and leadership come together. A c. of the stark simplicity and power of comic . MgO2 Mg + O2 c.) MgSO4 + 2NaCl MgCl2 + Na2SO4 d.) 2Na + Cl2 2NaCl b.) 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. Solid Monosaccharides are joined to form polysaccharides, and amino acids are joined to form proteins by this process. Which of the following statements is true concerning the characteristics of either compounds or mixtures? In general, the matter has mass and occupies space. The noble gases (helium, neon, argon, krypton, xenon and radon) are often used to make glowing signs by using electricity to ionize them to the plasma state. Please identify each of the following substances. polar covalent. b) Pure water. 2. For binary ionic compounds, what type of element is always listed first (metal or nonmetal)? D) The universe would cease its expansion. Deposition occurs when a gas transforms directly into a solid, without going through the liquid phase. It also holds clouds aloft. What holds the sodium and chloride ions together in a chemical bond? Both reactions are exergonic. Medium Solution Verified by Toppr Correct option is C) The particles of matter are continuously moving. Which organic molecules form the major structural materials of the body? Plasma consists of highly charged particles with extremely high kinetic energy. 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. Carbon, Hydrogen, Oxygen, Nitrogen (CHON). What form of matter is made from only one type of atom a. element b. material c. compound d. molecule. a) CH3OH b) HOClO c) NH4CN d) NH3 e) N2O3. small atoms with 6 or 7 valence shell electrons, such as oxygen, nitrogen, and chlorine, are electron-hungry. c) NaBr is a covalent compound and CO2 is an ionic compound. Carbon iv oxide is a combination of which elements? Physical B) the broadening of absorption lines in an elliptical galaxy's spectrum The liquid propane in a barbecue evaporates away because the user left the valve open. the enzyme 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 formation of chemical bonds between the reactants Exchange reactions allow chemical energy from one molecule to be transferred to another 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. The swimmer's body contains a higher concentration of electrolytes (salts) compared to the freshwater lake substrate The left reaction is endergonic, and the right reaction is exergonic. (TABLE SALT DISSOLVED IN WATER) 1. RNA carries out the orders for protein synthesis issued by DNA. A) the density of dark matter was slightly higher than average when the universe was very young. synthase. Except for elements 1 and 2, all other elements are stable with how many electrons in their outermost (valence) energy level? 4. So, from this, we can conclude that the: Heat is NOT an example of matter. DNA. C) The temperature of the gas tells us the gas density, so we can use the density to determine the cluster's mass. Think of monomers as the "building blocks" of polymers. Original conversation. Answers: 1. Kidneys play a major role in helping to maintain proper levels of Na+ and K+ ions in the blood. an amine group and an acid group Energy cannot be converted from one form to another, it can only be created or destroyed active sites Light appears to slow down as it passes through a BEC, allowing scientists to study the particle/wave paradox. H, C, O, Na III < I < II, Weakest to strongest Peptide bonds form from dehydration synthesis reactions between an amine group and an organic acid group. The enzyme releases the product(s) of the reaction. 3. There's even a strange type of matter, known as a chain-melted state, that stably exists as both a solid and liquid at once. C) supermassive black holes were present in the very early universe. The left reaction is exergonic, and the right reaction is endergonic. Atoms come together to form molecules, which are the building blocks for all types of matter, according to Washington State University (opens in new tab). It's a copper-based mineral known as Herbertsmithite, named after British mineralogist Herbert Smith. I create, scale and optimise business opportunities that matter. a) NF3 b) Na2O c) CO2 d) N2 e) CH4, Which of the following is an ionic compound? a. CH4 b. NaH c. PH3 d. IBr3 e. none of the above are ionic compounds. The hydrocarbon groups that dominate the structure of triglycerides are the basis for the efficient and compact energy storage by fat. Liquids cool as they evaporate because the energy transferred to surface molecules, which causes their escape, gets carried away with them. B) It is the energy contained in dark matter. Which of the following is a physical property of a substance? We would like to share some information on how to participate in the SBS Inkigayo on Sunday, February 12. A. a.) molecule A) the flat rotation curves of spiral galaxies 1. Elements C. Light D. Compounds. Writing isn't wam, bam, and done - it's a process like any other. What is true about the composition of a compound, no matter where we happen to find the compound? At the most fundamental level, matter is composed of elementary particles known as quarks and leptons (the class of elementary particles that includes electrons ). a. O3: molecular compound b. Al: atomic compound c. NH4OH: molecular compound d. H2: atomic element e. None of the above is correct. True This may occur either when the temperature of the sample is rapidly increased beyond the boiling point (flash vaporization) or when a substance is "freeze-dried" by cooling it under vacuum conditions so that the water in the substance undergoes sublimation and is removed from the sample, according to the U.S. Geological Survey (opens in new tab). The biosphere refers to the total of all ecosystems of the Earth. Based on current understanding, how would that affect the universe at that time? Which of the following is NOT considered a form of matter? When heat is applied to a solid, its particles begin to vibrate faster and move farther apart. Why? 4. Give examples of each. I < III < II 14) Which of the following best sums up current scientific thinking about the nature of dark matter? Therefore, it will form covalent bonds with four hydrogen atoms. Solids may break when pressed, but changing their shape is difficult, hence they are inflexible. It does not have mass and volume. Enzymes do not provide energy to their substrates. On a microscopic level, liquid glass is somewhere between a solid and a gel-like substance called a colloid a mixture of particles that are larger than a single atom or molecule. has a low heat capacity The swimmer's body contains a lower concentration of electrolytes (salts) compared to the freshwater lake Which of the following are considered elements (as opposed to compounds)? In the absence of responsive caregivingor if responses are unreliable or inappropriatethe brain's architecture does not form as expected, which can lead to disparities in learning and behavior. 2. (a) Chemical or Physical a. magnesium and fluorine b. nitrogen and sulfur c. oxygen and chlorine d. sodium and aluminum. 1. The swimmer's body contains a higher concentration of electrolytes (salts) compared to the freshwater lake Therefore, the liquid will conform to the shape of its container. A) the structure of any large galaxy. False, Which of the following combinations of atoms are most likely to be joined by ionic bonds? Then the pile of graphite is (b) ignited with a hot flame. is non-polar D) The question is nonsensegas temperature cannot possibly tell us anything about mass. C and Fe b. Na and Cl c. Al and C d. H and O. Solve the IVP. 10) When we say that a cluster of galaxies is acting as a gravitational lens, what do we mean? Hence, it is matters. Protons are transferred from oxygen to hydrogen during the formation of an ionic bond. A) massive blue stars D) Dark energy exists but dark matter does not. an acid group Which of the following compounds contains the Mn3+ ion? The substrate absorbs chemical energy from the enzyme after binding to its active site. What additional molecule is produced when fatty acids are bonded to glycerol to make a triglyceride? A) Stars would cease to exist when the dark matter is gone. 12) Based on current evidence, a supercluster is most likely to have formed in regions of space where For example, water vapor condenses into liquid water, known as its dew point. The reactivity of an atom is based on the number of electrons in its outer valance shell. Which of the following is an example of a decomposition reaction? Which of the following is a chemical that has an amine group and an organic acid group, but does not contain a peptide bond? D) cars driving on unpaved roads No, because there would no longer be a difference in electronegativity between the oxygen and hydrogen atoms. C The particles of matter are in stationary state. Which of the following is NOT a difference between a compound and a mixture? They attract electrons very strongly, a capability called electronegativity. A) If we include dark matter, the actual density equals the critical density. A Solid B Liquid C Gas D Vapour Easy Solution Verified by Toppr Correct option is D) Matter has three main state of matter that is solid, liquid and gas. 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? two nitrogen atoms ionic Write the formula for the oxide corresponding to the highest expected oxidation state for. an R group. Sulfur has an atomic number of 16. hydrogen The reaction in the presence of enzyme releases more energy. When exposed to external stress, solids tend to keep their shape. bonding of amine group to acid group What is the primary energy-transferring molecule in cells? Therefore, a solution with a pH of 8.3 is an alkaline (or basic) solution. The white matter connects different brain regions and helps them communicate with one another. C. A metal surface becomes dull on exposure to air. 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. Many play vital roles in cell function. B) The lensing broadens spectral lines, and we can use the broadening to "weigh" the cluster. 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. B) Dark matter consists 90% of neutrinos and 10% of WIMPs. Matter is made up of atom which is formed by the combination of subatomic particles. bonding of amine group to amine group It also brought forth a lot of questions since. D) matter for which we have theoretical reason to think it exists, but no observational evidence for its existence, 26) Which of the following are candidates for dark matter? Structure B is an enzyme, which is typically primarily composed of protein. Solid ice can be very brittle. 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 blood c.) X rays d.) bone c.) X rays Which of the following is an example of a decomposition reaction? a. NO2 b. PCl5 c. ICl. A) luminous matter emits white light, much like the light reflected from icebergs. Hence, microwaves cannot be considered as matter. B. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. 4. catalysts. For this to be the case, which of the following would have to be true (based on current understanding)? All matter has the same propertiesc. A. Oxygen B) It interacts only through the weak force and the force of gravity. Matter is everything around us. The liquid propane in a barbecue ignites upon contact with a spark. alkaline solution The seed coat's most important function is to provide a) a nonstressful . Matter exists in three states: solid, liquid and gas. Yes, because the electronegativity difference between hydrogen and oxygen would still be present. SBS Inkigayo Live Premiere - Scheduled Time of Broadcast: 3:50 PM, Sunday, March 5, 2023 (KST) - Check-in . C) We can observe the frictional effects of the hot gas in slowing the speeds of galaxies in the clusters. 3. False. Which of the following statements is true regarding the reactions shown? C) measurements of how galaxy speeds away from the Milky Way have increased during the past century 3. protein Such reactions are synthesis reactions. D) It is a type of energy that is associated with the "dark side" of The Force that rules the cosmos. You Can Be Yourself. a. HCl b. Cl2O c. SF6, Give the chemical name for each of the following binary compounds: nonmetal-nonmetal. 3) The text states that luminous matter in the Milky Way seems to be much like the tip of an iceberg. II. Plasma Plasma is very similar to gas, In fact, the easiest way to describe plasma is as a gas that can carry an electrical charge. What is a substance containing two or more elements or compounds that are physically, and not chemically, combined called? Liquid matter is made of more loosely packed particles. enzymes In addition, water has a high heat capacity and is considered a universal solvent since it dissolves more substances than any other known solvent. Energy: Light, heat, kinetic and potential energy, and sound are non-matter because they are massless. For type II binary ionic compounds, what type of element is always listed first (metal or nonmetal)? This figure shows a dehydration synthesis reaction between two monomers forming, resulting in a larger molecule. Rank the chemical bonds from relatively weakest to strongest. E) It is the only type of particle that interacts through the weak force. At this extremely low temperature, molecular motion comes very close to stopping. 3. [{Image src='graph3847362846850881619.jpg' alt='graph' caption=''}]. The reaction is called a dehydration synthesis, in which the H from the glycerol's alcohol group and the OH from the fatty acid's acid group are removed as water. C) matter consisting of black holes B) We are so close to these systems that we don't observe their expansion. The negatively charged chloride anion has dissociated from the salt crystal and formed an interaction with the slightly positively charged hydrogen atoms of several water molecules. Summary. A) observations of the speeds of individual galaxies in clusters Many other states of matter have been created under extreme or exotic conditions. Adding or removing energy from matter causes a physical change as matter moves from one state to another. Save 50% on any of our courses through March 31st, 2023! The reaction in the presence of enzyme will form a larger proportion of product. The valence electrons are then made up by the forming of an ester bond. Water can form hydrogen and oxygen gas under . Less enegy input is required to start the reaction in the presence of enzyme. Actually, not so much. 3. 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. 2Na + Cl2 2NaCl, Which of the following is NOT one of the three major types of chemical reactions? B) black holes are much more interesting than ordinary stars that give off light. (A) SrCl2 (B) COCl2 (C) N2O (D) Kr, Which of the following chemical species is a cation? Which of the following is NOT an example of matter? a buffer product Polar covalent bonds involve the transfer of electrons from electropositive atoms to electronegative atoms. 2 When heat is removed from a liquid, its particles slow down and begin to settle in one location within the substance. It is basically the type of substance which is formed when liquid converts into . True D) gravitational lensing around galaxy clusters <br><br>I'm skilled at thinking creatively (user experience (UX) design) to solve problems across projects and bringing diverse stakeholders together to deliver . 3. D) The expansion rate is slowing dramatically with time (a recollapsing universe). This homogenous mixture is called a solution. c) Ammonia(NH3). In fact, many of the special properties of water derive from its extensive hydrogen bonding capacity. D) faint red stars 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. Buffers can do this because they consist of a combination of a weak acid and a corresponding weak base. Most liquids contract when they freeze but water expands, making it less dense when it becomes ice. What kind of elements form molecular compounds? Which of the following is a FALSE statement about carbohydrates? 17) Imagine that it turns out that dark matter (not dark energy) is made up of an unstable form of matter that decays into photons or other forms of energy about 50 billion years from now. Which of the following pairs of elements will not form ionic compounds? a) Ca+ b) NH4+ c) Rb+ d) K+ e) Li+. 2. A balloon filled with hydrogen gas explodes upon contact with a spark. C) The galaxies in clusters would begin to fly apart. A few volatile substances will undergo sublimation at room temperature and pressure, such as frozen carbon dioxide, or dry ice. a structural variation in which different atoms of the same element have different numbers of neutrons. True The diagnosis usually signals a less favorable neurodevelopmental . They all have an incomplete valence electron shell. 4. can form hydrogen bonds It shall, however, include the following: (1) A designation of the subject of the judgment or order (i.e., Summary Judgment Dismissing Complaint, Order Modifying Alimony); (2) The date or dates on which the matter was heard or submitted; (3) The appearances of counsel and . Sulfur will form chemical bonds in a similar manner as Peptide bonds join the amine group on one amino acid with the R group of another amino acid. D) No, because their gravity is strong enough to hold them together even while the universe as a whole expands. Because of its polar nature, water is able to form hydrogen bonds. B) there was an excess concentration of hydrogen gas when the universe was very young. The cargo space of a refrigerated truck whose inner dimensions are 12m2.3m3.5m12 \mathrm{~m} \times 2.3 \mathrm{~m} \times 3.5 \mathrm{~m}12m2.3m3.5m is to be precooled from 25C25^{\circ} \mathrm{C}25C to an average temperature of 5C5^{\circ} \mathrm{C}5C. A) Hubble's law of expansion applies only to the space between galaxies. Classify (a) and (b) as chemical or physical changes. ranges from 1 to 7 Actually, ATP is a very unstable high-energy molecule because its three negatively charged phosphate groups are closely packed and repel each other. a. participation b. content c. artistic form d. subject matter. The difference is the amount of energy input (activation energy) required to initiate the reactions depending on the presence or absence of enzyme. Time crystals were created in a lab in 2017 and in 2021, Google announced that it had made a time crystal in a quantum computer, and that the crystal had lasted for 100 seconds before the ephemeral state disintegrated. 1.Nonpolar molecules have partial charges which can lead to hydrogen bonding. Which of the following statements regarding matter is FALSE? two triple bonds Sodium has one valence electron, while chlorine has seven. Which of the following is NOT one of the three basic steps involved in enzyme activity? one False, Except for elements with atomic number 1 and 2, all other elements are stable with how many electrons in their outermost (valence) energy level? The substrate is a reactant in an enzyme-catalyzed reaction. C) fossil fuel combustion in vehicles. A) No, because the universe is not old enough yet for these objects to have begun their expansion. Carbon has four electrons in its valence (outermost) electron shell. It is a matter but not a state of matter. The atoms of a polar molecule share electrons equally. 1) Which of the following best summarizes what we mean by dark matter? a. P2O3 b. SO2 c. NO3, Which of the following represent elements and which represent compounds? H2 + O H2O b.) Which of the following compounds would not exist? Peptide bonds are formed by hydrolysis. 16) Why wasn't the intracluster medium in galaxy clusters discovered until the 1960s? The average cloud weighs about a million pounds. In a freshwater lake, there are comparatively few electrolytes (salts) to carry a current away from a swimmer's body. d) NaB. B) We have moderately strong evidence that the acceleration is real, but essentially no idea what is causing it. The chemical composition of carbohydrates includes two oxygens and one hydrogen for every carbon present. Each collision also causes energy to be transferred, and when enough energy is transferred to particles near the surface they may be knocked completely away from the sample as free gas particles. d) Methane(CH4). Which of the following are ionic compounds? Which of the following is NOT considered a form of matter? SBS Inkigayo Pre-recording 1 + 2 - Scheduled Recording Time: 8:35 AM / 9:45 AM, Sunday, February 12, 2023 (KST) - Roll Call Location: In . What is the source of the activation energy in these reactions? A) The expansion rate has remained nearly constant with time (a coasting universe). Biological macromolecules are synthesized by ___________ reactions and are broken down by ___________ reactions. 18) Gravitational lensing occurs when (a) Nitrogen (b) Oxygen (c) Carbon (d) Phosphorus. dehydration synthesis; hydrolysis The solid matter has a defined shape, boundaries, and fixed volumes, implying that it is not compressible.
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