Multiple ChoiceA model shows water vapor turning into liquid water on a cold surface. Which change of state is represented?25views
Multiple ChoiceWhich of the following best describes the appearance of water before it undergoes a phase change from liquid to gas?34views
Multiple ChoiceWhen mineral oil and food coloring are mixed, is the observed change best classified as a physical change or a chemical change?40views
Multiple ChoiceWhich of the following best describes the change that occurs when wood is burned?22views
Multiple ChoiceHow does the molecular motion of a substance change when it transitions from the liquid phase to the solid phase?36views
Multiple ChoiceWhich of the following changes in the physical state of water require the input of energy?252views
Multiple ChoiceIs the ability of a substance to support combustion considered a physical property or a chemical property?32views