Chemical Rxns & Balancing Equations_PhySci

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What are chemical equations?

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Chemical equations are symbolic representations of chemical reactions, using symbols instead of words to summarize the reactants and products involved.

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What are reactants in a chemical reaction?

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Reactants are the substances that undergo a chemical change at the beginning of a chemical reaction.

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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 the arrow (--> ) in a chemical equation represent?

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The arrow indicates the direction of the reaction and means 'yields' or 'produces'.

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What is the purpose of balancing chemical equations?

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Balancing chemical equations ensures that the number of atoms for each element is the same on both sides of the equation, following the law of conservation of mass.

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What is a subscript in a chemical formula?

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A subscript is a small number written to the right of a chemical symbol that indicates the number of atoms of that element in a molecule.

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What is a coefficient in a chemical equation?

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

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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; the total mass of reactants equals the total mass of products.

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What is a chemical reaction?

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

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What is a chemical symbol?

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A chemical symbol is a one or two-letter notation used to represent an element on the periodic table.