Chemical Equation Review

Front

How many Hydrogen (H) atoms are in NH₃O₅?

Back

3

Front

A molecule is________

Back

more than one atom bonded together

Front

What is the Law of Conservation of Matter?

Back

Matter cannot be created or destroyed; it only changes form.

Front

What are the blue numbers in a chemical formula called?

Back

Subscripts

Front

Is the following equation balanced? 4Fe + 3O₂ → 2Fe₂O₃

Back

Yes

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What do coefficients in a chemical equation represent?

Back

The number of molecules or moles of a substance.

Front

What is the difference between a reactant and a product?

Back

Reactants are substances that start a chemical reaction; products are substances formed as a result.

Front

What does it mean for a chemical equation to be balanced?

Back

The number of atoms for each element is the same on both sides of the equation.

Front

What is a chemical formula?

Back

A way to represent a substance using symbols for its elements and numbers for the quantity of each.