Law of Conservation of Matter

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What is the Law of Conservation of Matter?

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The Law of Conservation of Matter states that matter cannot be created or destroyed in a chemical reaction; it can only change forms.

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What do coefficients in a chemical equation represent?

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Coefficients indicate the number of molecules or moles of a substance involved in a reaction.

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What do subscripts in a chemical formula indicate?

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Subscripts indicate the number of atoms of an element in a molecule.

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What is a balanced chemical equation?

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A balanced chemical equation has the same number of each type of atom on both sides of the equation.

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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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How can you tell if a chemical equation is balanced?

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You can tell if a chemical equation is balanced by counting the number of atoms of each element on both sides of the equation.

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What is the coefficient of water (H2O) in the reaction 2H2 + O2 -> 2H2O?

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The coefficient of water (H2O) in this reaction is 2.

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What happens to the total mass of reactants in a chemical reaction?

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

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What is the significance of balancing chemical equations?

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Balancing chemical equations ensures that the Law of Conservation of Matter is upheld, showing that matter is conserved during the reaction.