Chemical Reactions

Front

What is a chemical reaction?

Back

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

Front

What are reactants in a chemical reaction?

Back

The starting substances that undergo change during a chemical reaction.

Front

What are products in a chemical reaction?

Back

The new substances formed as a result of a chemical reaction.

Front

How many reactants are in the reaction: bicarbonate soda + vinegar → sodium acetate + water + carbon dioxide?

Back

2

Front

What indicates a chemical reaction has occurred?

Back

The formation of new substances, gas production, color change, or temperature change.

Front

What is the difference between a physical change and a chemical reaction?

Back

A physical change alters the form of a substance without changing its identity, while a chemical reaction produces new substances.

Front

What is an example of a chemical reaction?

Back

The reaction of vinegar and baking soda producing carbon dioxide gas.

Front

What is the law of conservation of mass?

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In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Front

What is an example of a product in a chemical reaction?

Back

Water and oxygen gas in the reaction: hydrogen peroxide → water + oxygen gas.

Front

What is an indicator of a chemical reaction?

Back

Bubbles forming, color change, or heat being released.