Explanation:
Chemical reactions are represented using chemical equations that shows how reactants combined to form products.
Every chemical equation is written in compliance with the law of conservation of mass.
The law states that "in a chemical reaction, matter is neither created nor destroyed but transformed from one form to another and that mass is always conserved".
This implies that no matter what we start with, we might end up with a different product but the atoms are still intact and not lost.
Also, the starting mass is the same we must end with.
This is why every atom in the equations of photosynthesis and respiration are the same on both sides in terms of number.
Learn more:
chemical equation brainly.com/question/4216541
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