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 the reactants equals the total mass of the products.

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

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What are reactants in a chemical reaction?

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Reactants are the starting substances in a chemical reaction that undergo change to form products.

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What does it mean for a chemical equation to be balanced?

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A chemical equation is balanced when the number of atoms of each element is the same on both sides of the equation.

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What is the difference between a coefficient and a subscript?

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A coefficient indicates the number of molecules, while a subscript indicates the number of atoms of an element in a molecule.

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How do you balance a chemical equation?

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To balance a chemical equation, adjust the coefficients of the reactants and products until the number of atoms of each element is equal on both sides.

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What is the purpose of balancing chemical equations?

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

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What is a chemical reaction?

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A chemical reaction is a process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.

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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.

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What is an example of a balanced chemical equation?

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An example of a balanced chemical equation is: 2H2 + O2 → 2H2O.