CHEMICAL FORMULAS AND EQUATIONS

Front

CaCO₃ represents a

Back

Formula

Front

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

Back

Matter is not created or destroyed.

Front

How many total atoms are in 2C₂HO₈C_l2?

Back

46

Front

How many molecules of the compound are in the following formula? 3C₂H₆

Back

3

Front

How many elements are in C₆H₁₂O₆?

Back

3

Front

How many O's are in Al₂(SO₄)₃?

Back

12

Front

Balance this equation:
HgO --> Hg + O₂

Back

2HgO --> 2Hg + O₂

Front

What is the left part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

Back

Reactants

Front

What is the right part of a chemical equation called...
2H_{2 +} O₂ --> 2H₂O

Back

Products 

Front

Is the following equation balanced?
2C₂H₂ + 5O₂ --> 4CO₂ + 2H₂O

Back

yes