Miranda is making a list of characteristics about energy. Which of the following is not a characteristic of energy?

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-