7. A liquid has a definite volume because a. the particles are close together b.

Question

7. A liquid has a definite volume because a. the particles are close together b. the particles are free to move c. the particles interact. d. a liquid does not have a definite volume As we go across a row on the periodic table a. metals become more reactive and nonmetals become less reactive b. metals become less reactive while nonmetals become more reactive c. both metals and nonmetals become more reactive d. both metals and nonmetals become less reactive For an ideal gas at constant volume and number of moles a. the pressure varies as the absolute temperature b. the pressure varies inversely as the absolute temperature c. the pressure never changes d. the temperature is constant At equilibrium, a. there are more products than reactants b. there are more reactants than products c. the amounts of reactants and products are equal d. the rates of the forward and reverse reactions are equal

Explanation / Answer

7) a) The particles are close together.

8) b) Mtals become less reactive and non metals become more reactive. (Across a period as electronegativity increases metallic character decrases and non metallic character inreases).

9) a) the pressue varies as the absolute temperature. BY ideal gas equation PV = nRT if volume and number of moles are constant pressure will be directly proportional to the absolute temperature.( R is a gas constant)

10) d) the rates of forward and backwards/reverse reactions will be equal. This is the condition of the equilibrium.

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