Two metals that produce both soluble trioxocarbonates(iv) and tetraoxosulphates (vi) acid

Two metals that produce both soluble trioxocarbonates(IV) and tetraoxosulphates(VI) acids are:

1. Zinc (Zn)
- Zinc trioxocarbonate(IV): ZnCO3
- Zinc tetraoxosulphate(VI) acid: ZnSO4

2. Magnesium (Mg)
- Magnesium trioxocarbonate(IV): MgCO3
- Magnesium tetraoxosulphate(VI) acid: MgSO4

The question makes no sense to me. Soluble in what? water? The answers don't make sense to me either.

ZnCO3 is not soluble in water but ZnSO4 is soluble. However, what is zinc sulfate acid?
MgCO3 is not soluble in water. MgSO4 is soluble in water.

I apologize for the confusion. You are correct in pointing out that zinc carbonate (ZnCO3) is not soluble in water. Zinc sulfate (ZnSO4) is soluble in water, but it is not considered an acid.

Upon reviewing the question again, it seems there might be a misunderstanding or error in the formulation. Trioxocarbonates(IV) and tetraoxosulphates(VI) are not acids but compounds with their respective acid radicals.

Therefore, I apologize for the incorrect information provided earlier.

Two metals that produce both soluble trioxocarbonates(IV) and tetraoxosulphates(VI) acid are sodium (Na) and potassium (K).

1. Sodium (Na):
- Trioxocarbonate(IV) Acid: Sodium forms sodium carbonate (Na2CO3) when it reacts with trioxocarbonate(IV) acid (also known as carbonic acid, H2CO3):
2Na + H2CO3 -> Na2CO3 + H2

- Tetraoxosulphate(VI) Acid: Sodium forms sodium sulfate (Na2SO4) when it reacts with tetraoxosulphate(VI) acid (also known as sulfuric acid, H2SO4):
2Na + H2SO4 -> Na2SO4 + H2

2. Potassium (K):
- Trioxocarbonate(IV) Acid: Potassium forms potassium carbonate (K2CO3) when it reacts with trioxocarbonate(IV) acid (carbonic acid, H2CO3):
2K + H2CO3 -> K2CO3 + H2

- Tetraoxosulphate(VI) Acid: Potassium forms potassium sulfate (K2SO4) when it reacts with tetraoxosulphate(VI) acid (sulfuric acid, H2SO4):
2K + H2SO4 -> K2SO4 + H2