Chemical Equations

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.

Front

What are reactants in a chemical equation?

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

Front

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 it mean for a chemical equation to be balanced?

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A balanced chemical equation has the same number of each type of atom on both sides of the equation, following the law of conservation of mass.

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How do you determine the total number of molecules in a compound?

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The total number of molecules is determined by the coefficient in front of the chemical formula.

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How do you find the total number of atoms in a compound?

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To find the total number of atoms, multiply the number of atoms of each element in the formula by the coefficient.

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What is the coefficient in a chemical equation?

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The coefficient is a number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved.

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What is the significance of subscripts in a chemical formula?

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

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How many nitrogen (N) atoms are in 4NH₃?

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There are 4 nitrogen (N) atoms in 4NH₃.

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How many total atoms are in 4NH₃?

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There are 16 total atoms in 4NH₃ (4 N and 12 H).