Question

Will you please tell me if these are right? Write the symbol of the caton or anion that give(s) the following reaction:?
1. Forms a precipite with AgNO3 that does not dissolve in HNO3

2. Forms a gas with HCl

3. Give a bright, yellow-orange flame test

4. Forms a precipitate with BaCl2 that does not dissolve in HNO3

1) CL-
2) Mg+
3) Na+
4) SO4--

Answer 1

all correct.