Balancing Equations I Formative

Front

How many atoms of Carbon (C) are in 2C₂H₆?

Back

4

Front

How many atoms of Oxygen (O) are in 3Mg(OH)₂?

Back

6

Front

How many atoms of Hydrogen (H) are in NH₄OH?

Back

5

Front

How many atoms of Hydrogen (H) are in 3Mg(OH)₂?

Back

6

Front

How many atoms of Oxygen (O) are in NH₄OH?

Back

1

Front

What is the formula for calculating the number of atoms in a compound?

Back

Multiply the subscript of each element by the coefficient.

Front

Define a coefficient in a chemical equation.

Back

A number placed in front of a chemical formula to indicate how many molecules or moles of that substance are present.

Front

Define a subscript in a chemical formula.

Back

A small number written to the right of an element symbol that indicates the number of atoms of that element in a molecule.

Front

What is the total number of atoms in 2H₂O?

Back

6 (2 H + 2 O = 2*2 + 2*1 = 4 + 2 = 6)

Front

How many total atoms are in 3Ca(OH)₂?

Back

9 (3 Ca + 6 H + 3 O = 3 + 6 + 3 = 12)