Two chemical reactions are shown:

C + O2 → CO2

CO2 + H2O → H2CO3

Which statement is true? (5 points)

Both are synthesis reactions.

Both are decomposition reactions.

A is a synthesis reaction, and B is a decomposition reaction.

A is a decomposition reaction, and B is a synthesis reaction.

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The correct answer is : Both are synthesis reactions.

Explanation:

In both cases, two compounds interact with each other to form a new one (in the first case carbon dioxide C02, and in the second, carbonic acid H2C03). They consist of reactions where heat is released (exothermic).

I think the answer would be A)? "Both are synthesis reactions."

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.