Problem: Which of these are neutral salts? Check all that apply.a) Cal2b) RbCNc) HCNd) NH4Ie) Ca(OH)2f) RbNO3 

Acidic ions = cations. These include:

1. Transition metals: charge of +2 or higher, else neutral

2. Main group metals: charge of +3 or higher, else neutral

3. Amines: contain only N and H (i.e. NH­₃) or C, N, and H (i.e. CH₃NH₂)

Basic ions = anions. If the addition of H⁺leads to:

1. weak acid = basic

2. strong acid = neutral