Chemical Reactions

Front

What is a chemical reaction?

Back

A process where reactants are transformed into products, involving the breaking and forming of chemical bonds.

Front

How do you write a chemical reaction using chemical equation symbols?

Back

By using the chemical formulas of the reactants and products, along with the appropriate symbols and coefficients to balance the equation.

Front

What is the balanced equation for KOH + HBr → KBr + H2O?

Back

1 KOH + 1 HBr → 1 KBr + 1 H2O

Front

What is the balanced equation for N2 + H2 → NH3?

Back

1 N2 + 3 H2 → 2 NH3

Front

What is a synthesis reaction?

Back

A type of chemical reaction where two or more substances combine to form a new compound.

Front

What is a decomposition reaction?

Back

A type of chemical reaction where a single compound breaks down into two or more simpler products.

Front

What is the difference between a synthesis reaction and a decomposition reaction?

Back

Synthesis reaction combines substances, while decomposition reaction breaks them down.

Front

Which of the following is a chemical reaction? Boiling water, Melting aluminum, Crushing a piece of chalk, Cooking an egg?

Back

Cooking an egg is a chemical reaction.

Front

What is a coefficient in a chemical equation?

Back

A number placed before a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.

Front

What does it mean to balance a chemical equation?

Back

To ensure that the number of atoms of each element is the same on both sides of the equation.