Chemical Formulas

Front

What are the substances at the beginning of a chemical equation called?

Back

Reactants

Front

What do the red numbers in a chemical formula represent?

Back

Coefficients

Front

How many molecules of methane (CH₄) are there in the formula?

Back

4

Front

What is the chemical composition of Baking Soda (NaHCO₃)?

Back

1 sodium, 1 hydrogen, 1 carbon, 3 oxygen

Front

How many phosphorus (P) atoms are in the formula P₄O₁₀?

Back

4

Front

What is a chemical formula?

Back

A representation of a substance using symbols for its constituent elements.

Front

What is the difference between a coefficient and a subscript in a chemical formula?

Back

A coefficient indicates the number of molecules, while a subscript indicates the number of atoms of an element in a molecule.

Front

What does the symbol 'Na' represent in a chemical formula?

Back

Sodium

Front

What is the significance of balancing a chemical equation?

Back

It ensures that the number of atoms for each element is the same on both sides of the equation.

Front

What is the formula for water?

Back

H₂O