Intro to Chemical Reaction Retake Ticket

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What is a chemical reaction?

Back

A process in which substances (reactants) undergo a transformation to form new substances (products).

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What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

What is a reactant?

Back

A substance that is consumed in a chemical reaction.

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What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Front

What does a balanced chemical equation represent?

Back

It shows that the number of atoms for each element is the same on both sides of the equation, indicating mass conservation.

Front

How do you calculate the mass of a reactant or product?

Back

By using the law of conservation of mass: mass of reactants = mass of products.

Front

What is a mole in chemistry?

Back

A unit that measures the amount of substance, defined as containing exactly 6.022 x 10^23 particles (atoms, molecules, etc.).

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What is stoichiometry?

Back

The calculation of reactants and products in chemical reactions based on balanced equations.

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What is a gas release in a chemical reaction?

Back

When a product of a reaction is a gas, it may escape into the atmosphere, leading to a decrease in mass of the remaining substances.

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What is the significance of coefficients in a balanced equation?

Back

Coefficients indicate the number of moles of each substance involved in the reaction.