4. If the heat of reaction is written on the reactant side of a chemical equation, what does that indicate about the reaction? ng
It is an exothermic reaction.
The energy of the products is less than the energy of the reactants.
hanges
It requires heat for the reaction to occur.
ate
The reaction will release that amount of heat to the surroundings.
s of

sure what is it? ^w^

a non redox reaction occurs when there is not a transfer of electrons. for redox reactions, which are reduction-oxidation reactions, a change in the oxidation number occurs. elements that are reduced gain electrons, and elements that are oxidized lose electrons.

explanation:

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).