If two solutions are mixed together in a container and the container feels hot, then
A. the reaction is endothermic.
B. the reaction is exothermic.
C. the energy of the universe is increased.
D. the energy of both the system
Chapter 11 - Gases (test bank)
Which of the following is not a gas at room temperature and pressure?
Which is not a property of a gas?
A. The density of a gaseous substance varies strongly with temperature
Chemical Reactions in Aqueous Solutions (test bank)
Which is the correct description of a solution?
A. A solution is a heterogeneous mixture of two or more substances.
B. A solution is a homogeneous mixture of two or more substances.
C. A so