compared to the energy released per mole of reactant during chemical reactions, the energy released per mole of reactant during nuclear reaction is

As a part of an experiment a student burns propane to produce carbon dioxide and water she remembers that she must follow the law conservation of matter when writing a balanced chemical equation which of these equation adheres to the law of conservation of matter

For the following, determine the type of reaction and then give products.

The excretory system,need answers for all: )