ACP_chapter2, 3andkey - expect element B to...

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Chapters 2 and 3: Dr. Anita Latham 1) Element A has 4 electrons in its valence shell. Would you expect element A to share/donate/accept electrons? Element B has 7 electrons in its valence shell. Would you expect element B to share/donate/accept electrons? 2) Which occurs faster at equilibrium, the formation of products from reactants, or reactants from products? 3) Why does the following structure fail to make sense chemically? H C C H 4) Consider the following reaction: H+ + Cl- HCl Name the reactants and products. Does the expression indicate reaction is reversible? 5) How can the freezing of water crack boulders? 6) Why does water have high specific heat? a) H bonds must be broken to raise its temp b) H bonds must be formed to raise its temp c) it is a poor insulator d) it can ionize Chapters 2 and 3 key: Dr. Anita Latham 1) Element A has 4 electrons in its valence shell. Would you expect element A to share/donate/accept electrons? Element B has 7 electrons in its valence shell. Would you
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Unformatted text preview: expect element B to share/donate/accept electrons? Element A: share, element B: accept 2) Which occurs faster at equilibrium, the formation of products from reactants, or reactants from products? At equilibrium the forward and reverse reactions occur at the same rate. 3) Why does the following structure fail to make sense chemically? H C C H Each carbon has only three covalent bonds instead of 4. 4) Consider the following reaction: H+ + Cl- HCl Name the reactants and products. Does the expression indicate reaction is reversible? H+ and Cl- are reactants, HCl is the product. Reaction is not reversible. 5) How can the freezing of water crack boulders? Water expands as it freezes, because the water molecules move further apart in forming ice crystals. When there is water in the crevice of a boulder expansion of water on freezing may crack the rock. 6) Why does water have high specific heat? a)...
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ACP_chapter2, 3andkey - expect element B to...

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