Balancing Chemical Equations

Front

The substances listed on the right side of a chemical equation are the

Back

Products

Front

CaCO₃ represents a chemical

Back

Formula

Front

The substances listed on the left side of a chemical equation are the

Back

Reactants

Front

In chemical reactions, what does the principle of conservation of mass mean?

Back

Matter is not created or destroyed.

Front

In balancing chemical equations, what do we change? Options: Coefficients, Subscripts, Both can be changed, None can be changed

Back

Coefficients

Front

How many phosphorus atoms are in PO₄?

Back

1

Front

How many hydrogen atoms are in 2 H₂?

Back

4

Front

Which number should go in the blank?
_ H₂ + O₂ -> 2 H₂O

Back

2

Front

Which number should go in the blank?
2 Na+ _ Cl₂ -> 2 NaCl

Back

1

Front

Which number should go in the blank?
Mn + _ HNO₃ → Mn(NO₃)₂ + H₂

Back

2