which of the following is not a form of matter

a. a hydrogen atom within a water molecule a. Which of the following pairs of elements is most likely to form an ionic compound? 4. The chemical reactivity of an atom is based on the overall number of electrons in the atom. A BEC also has many of the properties of a superfluid, or a fluid that flows without friction. The hydrocarbon groups that dominate the structure of triglycerides are the basis for the efficient and compact energy storage by fat. 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. 2. From what types of damage does the skin protect the body? A) measuring the speeds of galaxies orbiting the cluster's center protein Think of monomers as the "building blocks" of polymers. B) rotation curves of disk galaxies has a low heat capacity Scientists often have to deal with numbers that are either very large or very small. C) They respond to the weak force but not to the electromagnetic force, which means they cannot emit light. 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 . A. Secondary protein structures involve hydrogen bonding between amine and carboxyl groups. Covalent What is an element and what is a compound? 42) What is not a main source of evidence for the existence of dark matter? small atoms with 6 or 6 valence electrons tend to be electronegative In this process, the larger molecule (or polymer) is degraded to produce smaller molecules (or monomers). Which of the following are considered elements (as opposed to compounds)? Sodium has one valence electron, while chlorine has seven. two double bonds a. I2 b. Cl2 c. Br2 d. F2. Identify the spectator ions in the neutralization of lithium hydroxide, LiOH, with hydrobromic acid, HBr. A. Mixtures: It has both mass and space. salt deposits in many regions of the body hydrogen bond Dehydration synthesis refers to the joining of molecules by the removal of water. Electrons are transferred from hydrogen to oxygen during the formation of an ionic bond. Explanation: Matter can be defined as the substance having mass, volume and occupy space. Once dissociated, the sodium and chloride ions would be expected to disperse uniformly amongst the surrounding water molecules. c) Ammonia(NH3). False. 3. What is a compound? 2) Which of the following best summarizes what we mean by dark energy? 16) Why wasn't the intracluster medium in galaxy clusters discovered until the 1960s? molecule Physical, Polymerizes to form polyethylene. Therefore, it will form covalent bonds with four hydrogen atoms. a. H b. Br c. Se d. Sr, Which of these compounds belongs to the class of substances commonly known as "halohydrins"? B. What is the classification of a solution of NaOH with a pH of 8.3? What is a substance containing two or more elements or compounds that are physically, and not chemically, combined called? If unconfined, the particles of a gas will spread out indefinitely; if confined, the gas will expand to fill its container. Which four elements comprise approximately 96% of our body weight? synthesis, Which of the following statements regarding energy is FALSE? is based on the salinity of a solution 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. a) Carbon dioxide. A) Most dark matter probably consists of weakly interacting particles of a type that we have not yet identified. Much like solids, liquids (most of which have a lower density than solids) are incredibly difficult to compress. Which of the following is NOT an example of a physical property? 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. These reactions yield products with less energy than the initial reactants, along with energy that can be harvested for other uses. 4. How many hydrogen atoms will a single carbon atom bond with to form a stable molecule? In which of the following pairs of compounds are both members of the pair ionic compounds? True Which of the following elements does not exist as a diatomic molecule? What explains the partial negative charge on the oxygen atom within the water molecule? the attraction between their respective nuclei X-rays Select the correct statement about isotopes. D) We detect this gas with X-ray telescopes. All of the listed responses are true. 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. D) Dark energy exists but dark matter does not. B) massive objects cause more distant objects to appear much larger than they should and we can observe the distant objects with better resolution. A) If we include dark matter, the actual density equals the critical density. 18 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 chemical change is defined as a change in form of a substance in which a change in the chemical composition of the substance occurs. Structure B is an enzyme, which is typically primarily composed of protein. This figure shows a dehydration synthesis reaction between two monomers forming, resulting in a larger molecule. (a) CH4 (b) OF2 (c) K2O (d) Cl2 (e) none of the above. ATP A. water B. sodium C. chlorine D. oxygen. A) The temperature is always directly related to mass, which is why massive objects are always hotter than less massive objects. Matter is everything around us. Because of this, particles in a solid have very low kinetic energy. Which of the following statements is true concerning the characteristics of either compounds or mixtures? 3. Everything in the universe that contains mass is made of matter. The left reaction is endergonic, and the right reaction is exergonic. Ionic bonds are commonly formed between atoms with 1 or 2 valence shell electrons (such as potassium) and atoms with 7 valence shell electrons (such as fluorine). Atomic weight is determined by the number of electrons in an atom of a given element. a. HCl b. Cl2O c. SF6, Give the chemical name for each of the following binary compounds: nonmetal-nonmetal. Isotopes of the same element have the same atomic number but differ in their atomic masses. 10) When we say that a cluster of galaxies is acting as a gravitational lens, what do we mean? 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 No, because there would no longer be a difference in electronegativity between the oxygen and hydrogen atoms. C and Fe b. Na and Cl c. Al and C d. H and O. a. K b. H2O c. Ti d. HF, Which of the elements listed below would most likely form an ionic bond when bonded to oxygen? What is the common ending for the nonmetal portion of the name? It also brought forth a lot of questions since. 15) Which of the following methods used to determine the mass of a cluster does not depend on Newton's laws of gravity? Example: The book on the desk remains in rest position until it is picked up from that desk. 3. Exchange reactions allow chemical energy from one molecule to be transferred to another What type of chemical bond is most likely to occur between sodium and chlorine? They attract electrons very strongly, a capability called electronegativity. a colloid Please read the notice below before participating in the event. B. 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. 3. Copper metal turns green on exposure to air and water. Which of the following is NOT a fundamental subatomic unit of an element? Summary. substrate A. At this extremely low temperature, molecular motion comes very close to stopping. decomposition a. XeF6 b. OF2 c. BrF, Which of the following compounds is a non-conductor in the solid but a conductor when molten? Medium Solution Verified by Toppr Correct option is C) The particles of matter are continuously moving. a. sulfur and oxygen b. sodium and calcium c. sodium and sulfur d. barium and chlorine, Which one of the following statements is true about the periodic table? It's not a new type of matter, but it could. The diagnosis usually signals a less favorable neurodevelopmental . Liquid boils when enough heat is added to a liquid to cause vapor bubbles to form below the surface. The atoms of a polar molecule share electrons equally. Liquids cool as they evaporate because the energy transferred to surface molecules, which causes their escape, gets carried away with them. protein The liquid propane in a barbecue evaporates away because the user left the valve open. Lipids used as energy reserves in the body are stored as molecules of phospholipids. It will take the shape of its container. (a) MgCl_2 (b) CaCO_3 (c) Na_2Cl. Both of the illustrated reactions are exergonic and release the same amount of energy during product formation. bonding of amine group to R group ATP is the primary energy-transferring molecule in cells, and it provides a form of energy that is immediately usable by all body cells. Which of the following are elements and which are compounds? 3.Gases- In this state, the distances between the molecules are large and the intermolecular forces are negligible. 2. D) faint red stars two oxygen atoms. Biology, 21.06.2019 20:00. 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? D) They interact with other matter only through the weak force and not through gravity or any other force. A) NH_3 B) H_2O C) CaO D) H_2. 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. A. B) It interacts only through the weak force and the force of gravity. Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter. a. MnS b. MnBr2 c. Mn2O3 d. MnO, Which of the following cations is likely to be hydrated in compounds? Peptide bonds join the amine group on one amino acid with the R group of another amino acid. C) There is no longer any doubt that dark matter is made mostly of WIMPs. B) the structure of any individual cluster of galaxies. Moreover, they do not have a fixed shape or volume. energy storage C) Dark matter is present in individual galaxies, but there is no evidence that it can exist between the galaxies in a cluster. What is a compound? B) Jupiter-size objects nonpolar covalent bond DNA. Proteins form the major structural materials of the body. 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. A) There are not enough neutrinos to make up all the dark matter. proteins Less energy input is required to start the reaction in the presence of enzyme. B) matter that may inhabit dark areas of the cosmos where we see nothing at all Which of these terms would best classify the enzyme represented in the figure? 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. 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. B) Voids between superclusters began their existence as regions in the universe with a slightly lower density than the rest of the universe. Except for elements 1 and 2, all other elements are stable with how many electrons in their outermost (valence) energy level? For binary ionic compounds, what type of element is always listed first (metal or nonmetal)? 1. 2. To do this, scientists make the matter very, very cold. Answers: 2 Show answers Another question on Biology. My responsibilities . ionic B) It is an unusually large cluster that has a lot of gravity. 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. C) dark matter builds up in a particular region of space, leading to a very dense region and an extremely high mass-to-light ratio. 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 pH scale: is based on the concentration of H+ ions. All rights reserved. Classify the following as either an elemental substance or a compound: Sulfur dioxide. You can just be yourself. False. Nonpolar molecules are the result of unequal electron pair sharing. So, among the given options vapor is matter but not a state of matter. D) Dark matter probably does not really exist, and rather indicates a fundamental problem in our understanding of gravity. We at Modern Dermatology, in Scottsdale and Tempe . Solids also have a high density, meaning that the particles are tightly packed together. small atoms with 6 or 7 valence shell electrons, such as oxygen, nitrogen, and chlorine, are electron-hungry. 3) Why do we believe 90 percent of the mass of the Milky Way is in the form of dark matter? Our experts can answer your tough homework and study questions. In addition, water has a high heat capacity and is considered a universal solvent since it dissolves more substances than any other known solvent.

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