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Activation of energy is the foundation of chemical being react in a solution. If activation energy is not reached then no reaction would happen.
Answer:
1g or 10^-3kg
Explanation:
as you know , the density =mass \volume
so you have the mass from the number it self
<h2>

so from this equation, you will get 1 g and you can to SI to be
kg</h2>
Answer:
H2CO3 represents carbonic acid