Answer question please?

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa