Types of Chemical Reactions, Balancing and Molar Mass Test

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What is a Double Replacement Reaction?

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A chemical reaction where two compounds exchange ions or bonds to form two new compounds.

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What is a Coefficient in a chemical equation?

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A number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.

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What is a Subscript in a chemical formula?

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A small number written after an element symbol that indicates the number of atoms of that element in a molecule.

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What is a Synthesis Reaction?

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A type of chemical reaction where two or more simple substances combine to form a more complex product.

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What is a Decomposition Reaction?

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A chemical reaction where a single compound breaks down into two or more simpler products.

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What is a Single Replacement Reaction?

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A reaction where one element replaces another element in a compound.

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How do you balance a chemical equation?

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By adjusting the coefficients of the reactants and products to ensure the same number of each type of atom on both sides of the equation.

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What is the Law of Conservation of Mass?

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A principle stating that mass is neither created nor destroyed in a chemical reaction.

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What is the molar mass of H2O?

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The molar mass of water (H2O) is approximately 18.02 g/mol.

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What is the product of the reaction: 2H2 + O2 → ?

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The product is 2H2O (water).