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 matter cannot be created or destroyed in a chemical reaction; it can only be transformed or changed from one form to another.

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What does it mean for matter to be transformed in a chemical reaction?

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In a chemical reaction, matter is transformed when the atoms rearrange to form new substances, but the total mass remains constant.

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How do you balance a chemical equation?

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To balance a chemical equation, adjust the coefficients in front of the compounds to ensure that the number of atoms of each element is the same on both sides of the equation.

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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 in an equation to indicate how many molecules or moles of that substance are involved in the reaction.

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What is an example of a physical change?

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Melting of ice is an example of a physical change, as it does not alter the chemical composition of water.

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What is a chemical reaction?

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A chemical reaction is a process where reactants are transformed into products through the breaking and forming of chemical bonds.

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What is the difference between a physical change and a chemical change?

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A physical change affects the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

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

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The total mass of the reactants equals the total mass of the products in a chemical reaction, according to the Law of Conservation of Mass.

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What is an example of a chemical reaction?

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Burning of wood is an example of a chemical reaction, as it produces new substances like ash, smoke, and gases.

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What is the significance of balancing chemical equations?

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Balancing chemical equations is important because it reflects the conservation of mass and ensures that the same amount of each element is present before and after the reaction.