Chemical Equations Test

Front

What is a Coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula to indicate how many molecules or atoms of that substance are involved in the reaction.

Front

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.

Front

What is a Chemical Change?

Back

A chemical change is a process where one or more substances are transformed into new substances with different properties.

Front

What does the Law of Conservation of Mass state?

Back

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.

Front

What is Cellular Respiration?

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Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What is a Chemical Formula?

Back

A chemical formula is a way of expressing the composition of a substance using symbols for its constituent elements and numbers to indicate the ratio of atoms.

Front

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.

Front

What is the difference between a Chemical Change and a Physical Change?

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A chemical change results in the formation of new substances, while a physical change alters the form or appearance of a substance without changing its chemical composition.

Front

What are Reactants in a chemical reaction?

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Reactants are the starting substances 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.