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Cards In This Set
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How is Avogadro's number related to the numbers on the periodic table?
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The atomic mass listed is the mass of Avogadro's number's worth of atoms.
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Why might increasing the concentration of a set of reactants increase the rate of reaction?
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You have increased the chances that any two reactant molecules will collide and react.
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Which of the following reaction energies is the most endothermic?
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540 kJ/mol
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What is the number of grams of CO2 produced if you combust .50 mol of CH4 according to the following balanced equation?
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22g
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How many bonds between N and H are formed?
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6
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According to the following reaction, which molecule is acting as a base?
H2O + H2SO4 H3O + HSO4 |
H2O
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Which of the following statements describes a basic solution?
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[H3O+] < [OH-]
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If the pH of a solution is 10, what is the hydronium ion concentration?
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1 x 10 -10 M
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If you had a 1 M solution of a weak acid what would be a reasonable pH
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6
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Why might an area with a large amount of limestone be less susceptible to acid rain/
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The acid in the rain is neutralized by the natrual base in the limestone.Which
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Which of the following statements about buffers is untrue?
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None of the above are true.
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What is oxidation?
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The loss of electrons
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Which of the half-reactions below would be complementary , balance the following half-reaction and be chemically reasonable?
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2K 2K+
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What might the relationship be between an element's ionization energy and its ability to behave as an oxidizing agent?
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As the ionization energy goes UP the ability of an element to act as an oxidizing agent goes UP
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The metal salt in certain films can be exposed by X rays during airport security checks even when in the camera with a closed shutter why?
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X rays are just high energy light that can go through objects and thus exposes the film.
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