The observed brightness of a star depends on which factors?
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<u>Answer:</u> The mass of carbon dioxide formed in the reaction is 269 grams.
<u>Explanation:</u>
Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.
This also means that total mass on the reactant side must be equal to the total mass on the product side.
The chemical equation for the decomposition of calcium carbonate follows:
Let the mass of carbon dioxide be 'x' grams
We are given:
Mass of calcium carbonate = 612 grams
Mass of CaO = 343 grams
Total mass on reactant side = 612 g
Total mass on product side = [343 + x] g
So, by applying law of conservation of mass, we get:
Hence, the mass of carbon dioxide formed in the reaction is 269 grams.