Help please! I’m not sure if metal b has higher density then a & I don’t know the other questions without that information.

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion

Is it safe to take 450mg of diphenhydramine hydrochloride?