Types of chemical equations

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What is a Double Replacement reaction?

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A type of chemical reaction where ions in two compounds switch places, forming two new compounds.

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What is the percent composition of an element in a compound?

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The percent by mass of an element in a compound, calculated by dividing the mass of the element by the total mass of the compound and multiplying by 100.

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What does a balanced chemical equation represent?

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It represents the law of conservation of mass, showing that the number of atoms of each element is the same on both sides of the equation.

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What is a reactant in a chemical reaction?

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A reactant is a substance that undergoes change during a chemical reaction; it is the material being acted upon.

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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 that the number of atoms of each element is equal on both sides.

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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 Combustion reaction?

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A type of chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat.

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What is a Single Replacement reaction?

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A type of chemical reaction where one element replaces another element in a compound.

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What is the law of conservation of mass?

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A principle stating that matter cannot be created or destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

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What is the formula for calculating percent by mass?

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Percent by mass = (mass of element / total mass of compound) x 100.