Law of Conservation of Mass

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What is the Law of Conservation of Mass?

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The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. The total mass of reactants equals the total mass of products.

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What is mass?

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Mass is a measure of the amount of matter in an object, typically measured in grams or kilograms.

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What is a chemical reaction?

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A chemical reaction is a process that involves the transformation of substances through the breaking and forming of chemical bonds.

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Which of the following is a sign of a chemical reaction?

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Color change, gas production, temperature change, and formation of a precipitate are all signs of a chemical reaction.

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What happens to the mass of products in a chemical reaction?

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The mass of the products is equal to the mass of the reactants, according to the Law of Conservation of Mass.

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What is a reactant?

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A reactant is a substance that undergoes a chemical change in a reaction.

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What is a product?

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A product is a substance that is formed as a result of a chemical reaction.

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What is a coefficient in a chemical equation?

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A coefficient is a number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.

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What is a subscript in a chemical formula?

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A subscript is a small number written to the right of a chemical symbol that indicates the number of atoms of that element in a molecule.

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What is the difference between mass and weight?

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Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.