Question

many familiar substances have common, unsystematic names. for each of the following, give the correct systematic name. part a saltpeter, kno₃ part b soda ash, na₂co₃ part c lime, cao

Explanation:

Step1: Identify cation and anion in $KNO_3$

The cation is potassium ($K^+$) and the anion is nitrate ($NO_3^-$).

Step2: Name the compound

The systematic name is potassium nitrate.

Step3: Identify cation and anion in $Na_2CO_3$

The cation is sodium ($Na^+$) and the anion is carbonate ($CO_3^{2 -}$).

Step4: Name the compound

The systematic name is sodium carbonate.

Step5: Identify cation and anion in $CaO$

The cation is calcium ($Ca^{2+}$) and the anion is oxide ($O^{2 -}$).

Step6: Name the compound

The systematic name is calcium oxide.

Answer:

Part A: potassium nitrate
Part B: sodium carbonate
Part C: calcium oxide