Law of Conservation

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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 are reactants in a chemical reaction?

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Reactants are the starting substances that undergo a chemical change during a reaction.

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What are products in a chemical reaction?

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Products are the substances that are formed as a result of a chemical reaction.

Front

If 50g of reactants are used, how much mass of products will be formed?

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50g of products will be formed, according to the Law of Conservation of Mass.

Front

What happens to atoms during a chemical reaction?

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Atoms are rearranged to form new substances, but the total number of atoms remains the same.

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What is an example of a chemical reaction?

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An example is the reaction of hydrogen and oxygen to form water (2H2 + O2 -> 2H2O).

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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 Mass is upheld, showing that the number of atoms for each element is the same on both sides of the equation.

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What is a common misconception about burning wood?

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A common misconception is that wood disappears when burned; in reality, it transforms into ash, smoke, and gases, conserving mass.

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What is the role of coefficients in a chemical equation?

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

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How do you calculate the total mass of products?

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To calculate the total mass of products, add the masses of all reactants; they must equal each other.