Balancing Chemical Equations

Front

What are the new substances created after a chemical reaction called?

Back

Products

Front

What are the substances present before a chemical reaction called?

Back

Reactants

Tags

NGSS.MS-PS1-5

Front

What does it mean for a chemical equation to be balanced?

Back

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

Tags

NGSS.MS-PS1-5

Front

What is the purpose of coefficients in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance involved in the reaction.

Front

Is the equation SnO2 + 2 H2 --> Sn + 2 H2O balanced or unbalanced?

Back

Balanced

Tags

NGSS.MS-PS1-5

Front

Is the equation NaBr + CaF2 --> NaF + CaBr2 balanced or unbalanced?

Back

Unbalanced

Tags

NGSS.MS-PS1-5

Front

Is the equation K + 2 MgBr --> KBr + Mg balanced or unbalanced?

Back

Unbalanced

Tags

NGSS.MS-PS1-5

Front

What is a chemical reaction?

Back

A process where reactants are transformed into products.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the law of conservation of mass?

Back

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

Tags

NGSS.MS-PS1-5

Front

What are reactants in a chemical equation?

Back

Reactants are the starting materials that undergo a chemical change.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2