STUFF YOU NEED TO KNOW TO PASS THE AP TEST HOMES
(A) BeCl2 (B) SO2 (C) N2 (D) O2 (E) F2 Is the molecule in which the intramolecular forces are strongest
(A) BeCl2
This question refers to the following types of chemical or physical changes. (A) Oxidation-reduction reaction (B) BrØnsted-Lowry acid-base reaction (C) Dehydration (D) Precipitation Occurs when solid sodium acetate, NaC2H3O2(s), is added to water
(D) Precipitation
(A) CH3CH2CH2CH3 (B) CH3CH2CH2OH (C) CH3COCH3 (D) CH3COOH (E) CH3CH2CH2NH2 Is the LEAST soluble in water
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(A) H2(g) molecules at 10-3 atm and 200 oC (B) O2(g) molecules at 20 atm and 200 oC (C) SO2(g) molecules at 20 atm and 200oC (D) NH3(g) molecules at 20 atm and H2O 200 oC (E) NH3(g) molecules at 20 atm and 300 oC Have lowest root-mean-square speed
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(A) H2(g) molecules at 10^-3 atm and 200 oC (B) O2(g) molecules at 20 atm and 200 oC (C) SO2(g) molecules at 20 atm and 200oC (D) NH3(g) molecules at 20 atm and H2O 200 oC (E) NH3(g) molecules at 20 atm and 300 oC Behave most like an ideal gas
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12. Under which of the following conditions can an endothermic reaction be thermodynamically favorable? (A) (Delta) G is positive (B) (Delta) S is negative (C) T(Delta)S > (Delta)H (D) T(Delta)S = 0 (E) There are no conditions under which an endothermic reaction can be thermodynamically favorable.
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A certain crystalline substance that has a low melting point does not conduct electricity in solution or when melted. This substance is likely to be (A) A covalent network solid (B) A metallic solid (C) A polymer (D) An ionic solid (E) A molecular solid
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NH3(aq) + HCl(aq) ⇆ NH4+(aq) + Cl-(aq) The BrØnsted-Lowry bases in the reaction represented above are (A) NH3(aq) and NH4+(aq) (B) NH3(aq) and Cl-(aq) (C) NH3(aq) and HCl(aq) (D) HCl(aq) and NH4+(aq) (E) HCl(aq) and Cl-(aq)
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Oxygen is acting as an oxidizing agent in all of the following reactions EXCEPT (A) 2C(s) + O2(g) --> 2CO (B) S(s) + O2(g) --> SO2(g) (C) 2F2(g) + O2(g) -->2OF2(g) (D) 2Na(s) + O2(g) --> Na2O2(s) (E) 2Mg(s) + O2(g) --> 2MgO(s)
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Solid Al(NO3)3 is added to distilled water to produce a solution in which the concentration of nitrate, [NO3-] is 0.10M. What is the concentration of aluminum ion, [Al3+], in this solution? (A) 0.010M (B) 0.033 M (C) 0.066 M (D) 0.10 M (E) 0.30 M
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When 6.0 L of He(g) and 10. L of N2(g), both at 0oC and 1.0 atm, are pumped into an evacuated 4.0 L rigid container, the final pressure in the container at 0o C is (A) 2.0 atm (B) 4.0 atm (C) 6.4 atm (D) 8.8 atm (E) 16 atm
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Which of the following is a weak acid in aqueous solution? (A) HCl (B) HClO4 (C) HNO3 (D) H2S (E) H2SO4
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