RoseMarie Gallagher and Paul Ingram Solutions for Chapter: In the Lab, Exercise 4: Q

The other name for a positive ion is ............?

Which two cations cannot be identified using only sodium hydroxide? Which further test could be done?

Sodium hydroxide and ammonia solutions cannot be used to identify ${\mathrm{Na}}^{+}$ or ${\mathrm{K}}^{+}$ ions. Why not?

Silver nitrate is used in the test for halides. Why?

Nitrates are not tested by forming a precipitate. Why not?

Where do the ${\mathrm{OH}}^{-}$ ion come from, in the test for nitrate ions?

Why is acid used, in the test for carbonates?

Limewater is used in the test for carbonate. What is limewater?