Stoichiometry Flashcard Review

Front

What is stoichiometry?

Back

Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions.

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What does the Law of Conservation of Mass state?

Back

The Law of Conservation of Mass states that matter cannot be created or destroyed in a chemical reaction.

Front

What is a chemical equation?

Back

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

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation.

Front

What is a coefficient in a chemical equation?

Back

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

Front

How do you determine if a chemical equation is balanced?

Back

To determine if a chemical equation is balanced, count the number of atoms of each element on both sides of the equation and ensure they are equal.

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations is important because it reflects the conservation of mass and allows for accurate calculations of reactants and products.

Front

What is the difference between an element and a compound?

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An element is a pure substance that cannot be broken down into simpler substances, while a compound is a substance formed when two or more elements chemically bond together.

Front

What is the role of subscripts in a chemical formula?

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Subscripts in a chemical formula indicate the number of atoms of each element in a molecule.

Front

What is the formula for calculating moles from mass?

Back

The formula for calculating moles from mass is: Moles = Mass (g) / Molar Mass (g/mol).