According to VSEPR theory‚ which one of the following molecules should have a bent shape?Answer | | | | | Selected Answer: | Cl2O | | | | | * Question 2 10 out of 10 points | | | According to the VSEPR theory‚ the molecular shape of SiCl4 isAnswer | | | | | Selected Answer: | tetrahedral. | | | | | * Question 3 10 out of 10 points | | | According to the VSEPR theory‚ the shape of the SO3 molecule isAnswer | | | | | Selected Answer: | trigonal
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line I learned about the different structures of atoms. Amanda Bynes 2.2 assessment p.5 pg. 44 October 2nd 1a. What does it mean when a molecule is said to be “polar”? -Because the molecule is a bit like a magnet with two poles. 1b. How do hydrogen bonds between water molecules occur? -The attraction between a hydrogen atom with a partially negative charge. 2b. Why is water such a good solvent? -Because water easily dissolves salts‚ sugars
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essential oil of spearmint and cis-jasmone an example of a perfume distilled from jasmine flowers. Organic chemistry is the study of carbon compounds. It is also said that an organic compound is any member of a large class of chemical compounds whose molecules contain carbon and hydrogen but carbides‚ carbonates‚ carbon oxides and elementary carbon are not organic compounds. Carbon compounds make up the structure of all living things. Organic chemistry is the study of carbon compounds. Nearly all compounds
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phosphatase. ZnCl2 is dissociates into Zn2+ ions. Zn2+ ions are cofactors of acid phosphatase. The catalytic activity of the enzyme can enhances Zn2+ binding. Some enzymes are catalytically active without a requirement for additional ions or molecules. In others‚ activity depends on the presence of a non-protein cofactor. Cofactors fall into two major groups; they are either metal ions or organic compounds. Acid phosphatase uses Zn2+ ions as cofactors. Tightly bound zinc atom contributes to the
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Part I Multiple choice or short answer questions 1) (2 points) Identify a solid a. Definite volume and no definite shape b. no definite volume and no definite shape c. definite volume and definite shape 2) (2 points) A substance composed of two or more elements in a fixed‚ definite proportion is a. A solution. b. A heterogeneous mixture. c. An alloy. d. A homogeneous mixture. e. A compound. 3) (2 points) Read the water
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chemistry which helps to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms. The molecule methane (CH4)‚ has a tetrahedral shape as it has 4 electron clouds‚ all of which are localized. This molecule is nonpolar because all the outer atoms are the same and are distributed symmetrically‚ the dipoles can cancel out even if polar bonds are present. 2.) The molecule of PCl3 is a polar molecule because the bond dipoles cannot cancel out‚ since it has
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Chemistry- Water Polarity Mrs. Jenny Polarity: The intermolecular forces between the slightly positively- charged end of one molecule to the negative end of another of the same molecule. Polarity simply means that the molecule has both a negatively and positively charged end. The polarity of water is important because it is responsible for dissolving other polar molecules like ionic compounds (such as salt) and sugars. To form ions‚ ionic compounds must be dissolved in water. This is important because
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Chemical Bonds Chemical Bond: is the force that holds atoms together in a compound. They form because they lower the potential energy of the charged particles that compose atoms. Chemical bonds can be broadly classified into two types: Ionic and Covalent. Ionic: metal & nonmetal Metals have a tendency to lose electrons and nonmetals have a tendency to gain them. The metal atom becomes a cation and a nonmetal becomes an anion. The oppositely charged ions attract one another and form an ionic
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without changing the composition of the substance The energy of a moving object‚ dependent on its mass and velocity 8. 7. Representations of chemical phenomena in terms of atoms and molecules; also called particulate level Representations of chemical phenomena in terms of atoms and molecules; also called submicroscopic level 10. 9. Physical properties that do not depend on the amount of matter present A tentative explanation or prediction based on experimental observations
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tissue. If molecules have non zero bond dipole‚ because polar molecule must have a non-zero molecular dipole where electron spend more of their time closer to one atomic nucleus than the other and make one end partially positive or negative than the other end. Different charge will attract the opposite charge which will bend the stream of liquid if it’s polar which cause the bend of the stream. Therefore proofing the shape of molecule of the liquid is not symmetric and it’s a polar molecule because
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