Counting Atoms

Front

What is the formula for Sodium Chloride?

Back

NaCl

Front

How many Sodium (Na) atoms are in 6NaCl?

Back

6

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.

Front

Is the equation 2H₂ + O₂ → 2H₂O balanced?

Back

Yes

Front

How many Carbon (C) atoms are in 2Na₂CO₃?

Back

2

Front

What is the balanced equation for the reaction of Sodium and Water?

Back

2Na + 2H₂O → 2NaOH + H₂

Front

What is the coefficient in front of H₂O in the equation 2Na + 2H₂O → 2NaOH + H₂?

Back

2

Front

How many total atoms are in the compound CaCO₃?

Back

5 (1 Calcium, 1 Carbon, 3 Oxygen)

Front

What is the significance of coefficients in a chemical equation?

Back

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

Front

What is the total number of atoms in the equation 2H₂ + O₂ → 2H₂O?

Back

6 (4 Hydrogen, 2 Oxygen)