Reducing the volume of a contained gas by one third, while holding temperature constant, causes pressure to
a. be decreased by two thirds.
b. be increased by two thirds.
c. be decreased by one third.
d. be increased by one third

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

What happens to the temperature of a substance when the average kinetic energy of its particles increases?