Chemical Equations and Properties

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What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.

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What does the Law of Conservation of Matter state?

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The Law of Conservation of Matter states that in a chemical reaction, matter is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

What are reactants in a chemical reaction?

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

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What are products in a chemical reaction?

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Products are the new substances formed as a result of a chemical reaction.

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, ensuring the Law of Conservation of Matter is followed.

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What is an insulator?

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An insulator is a substance that does not conduct heat or electricity well.

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What is a conductor?

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A conductor is a material that allows the flow of heat and electricity.

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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.

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What is a chemical reaction?

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

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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.