Chemical Reactions

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What is a chemical reaction?

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

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What are reactants in a chemical reaction?

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

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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 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, indicating that mass is conserved during the reaction.

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How do you determine the mass of products formed in a reaction?

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The mass of products can be determined using the law of conservation of mass, which states that the total mass of reactants equals the total mass of products.

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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 cannot be created or destroyed in a chemical reaction; it can only change forms.

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What is a balanced chemical equation?

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A balanced chemical equation is an equation that shows the reactants and products with equal numbers of each type of atom on both sides.

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What is the significance of coefficients in a chemical equation?

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Coefficients indicate the relative amounts of reactants and products involved in a chemical reaction and are used to balance the equation.

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What is the difference between a physical change and a chemical change?

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A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances with different properties.

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What is stoichiometry in chemistry?

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Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced equation.