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The Law of Conservation of Mass applies.

The total mass of all the reactants MUST equal the total mass of all the products, The individual comoounds may vary.

e,g,

A + B = C + D

25 g (A) + 30g (B) = 55 g of reactants.

So the total mass of the products MUST equal 55 g.

However, product (C) may have a mass of 40g , then product (D) MUST equal 15 g

Hence 40 g + 15 g = 55 g,

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lenpollock

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3mo ago
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Wiki User

11y ago

The reactants will have a slightly greater mass because as the reaction occurs the mass of the reactants will separate out into the products and in the process a small amount of the mass from the original reactants will be lost leaving the products with less mass than the original reactants.

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Wiki User

10y ago

No, they are equal - law of mass conservation.

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Wiki User

8y ago

Mass can neither be created or destroyed in a chemical reaction, so there is a requirement that the mass of all the reactants MUST equal that of the products.

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7y ago

No, this is against the general principle of mass conservation. Total Mass of Products is always equal to Total Mass of Reactants

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Wiki User

11y ago

False

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Q: How does mass of the reactants compare with the mass of the products?
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