chemical equations basics

Front

What is a chemical equation?

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A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products involved.

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What are reactants in a chemical equation?

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

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What are products in a chemical equation?

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

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What does the coefficient in a chemical equation represent?

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The coefficient indicates the number of molecules or moles of a substance involved in the reaction.

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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.

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How do you balance a chemical equation?

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To balance a chemical equation, adjust the coefficients to ensure the same number of each type of atom appears on both sides.

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What is the chemical formula for water?

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The chemical formula for water is H2O.

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What is a molecular compound?

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A molecular compound is a chemical compound whose simplest units are molecules, formed by covalent bonds.

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What is an ionic compound?

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An ionic compound is formed when atoms transfer electrons, resulting in positive and negative ions that attract each other.

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What does it mean for a reaction to be exothermic?

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An exothermic reaction is one that releases energy, usually in the form of heat, to the surroundings.