this graph shows the change in temperature of a sample of water in a closed system as thermal energy is added over time. what happens to the temperature of the water during changes of state? A. it falls sharply B. it increases gradually C. it remains the same D. it decreases gradually

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.