Which statement describes the law of conservation of energy? A. All systems will exchange matter and energy with their surroundings.
B. All systems can exchange energy, but not matter, with their surroundings.
C. Energy cannot be created nor destroyed, but it changes from one form to another.
D. Energy is destroyed in most chemical reactions when new products are formed.

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.