Balancing Equations

Front

The blue numbers in the image below represent ________

Back

subscripts

Front

The number of Na's in Na₂CO₃ is ________

Back

2

Front

How many Elements are in the compound C₂H₈O?

Back

3

Front

Number of C's in 2Na₂CO₃ is ________

Back

2

Front

How many Magnesium are in 10MgCl₂?

Back

10

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate how many molecules are involved.

Front

What does a subscript indicate in a chemical formula?

Back

The number of atoms of an element in a molecule.

Front

What is the purpose of balancing chemical equations?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.

Front

What is the total number of atoms in the compound C₂H₈O?

Back

11 (2 Carbon, 8 Hydrogen, 1 Oxygen)

Front

In the equation 2H₂ + O₂ → 2H₂O, what does the '2' in front of H₂O represent?

Back

It indicates that there are 2 molecules of water produced.