Answer:
An elementary reaction is a chemical reaction in which one or more chemical species react directly to form products in a single reaction step and with a single transition state.
Nucleus
Explanation:
they originate in the nucleus
9460 kj
just did it
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hope it helps:)))!!!!!!
(215 torr)(51 mL)=("x" torr)(18,500 mL) x = O.593 torr