Units 3 & 4 CMT Review OL

Front

What is a chemical reaction?

Back

A process where reactants transform into products, involving the breaking and forming of chemical bonds.

Front

What is the balanced equation for the combustion of dicarbon hexahydride (C2H6)?

Back

O2 + C2H6 -> H2O + CO2

Front

What does a subscript in a chemical formula indicate?

Back

It shows the number of specific atoms within a compound, e.g., in H2O, the '2' indicates there are two hydrogen atoms.

Front

What is the physical state of mercury(II) oxide (HgO)?

Back

Solid (s) when it is in its standard state.

Front

How do you calculate the volume of a solution given molarity and moles?

Back

Volume (L) = Moles / Molarity. For example, 0.30 moles of Na2SO4 in a 0.20 M solution gives 1.5 L.

Front

What is the formula for calcium nitrate?

Back

Ca(NO3)2

Front

What is the formula for iron(III) phosphate?

Back

FePO4

Front

What is the product of the reaction between calcium nitrate and iron(III) phosphate?

Back

Calcium phosphate (Ca3(PO4)2) and iron(III) nitrate (Fe(NO3)3).

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a compound to indicate how many molecules are involved in the reaction.

Front

What is the difference between a reactant and a product in a chemical reaction?

Back

Reactants are substances that start a chemical reaction, while products are substances formed as a result of the reaction.