are these possible

[zileselakovic]

I know Cu reacts with concentrated H₂SO₄ giving CuSo₄, SO₂ and H₂₀, and that it melts in concentrated HCl (4HCl + Cu +O₂ = CuCl₄(-2) + 2H₂O)

but are these possible?

CuO + H₂SO₄ = ? (it doesn't say it's concentrated acid)

HCl + Cu =? (it doesn't say that we can add anything)

Thank you!

[peter]

I know Cu reacts with concentrated H₂SO₄ giving CuSo₄, SO₂ and H₂₀, and that it melts in concentrated HCl (4HCl + Cu +O₂ = CuCl₄(-2) + 2H₂O)

but are these possible?

CuO + H₂SO₄ = ? (it doesn't say it's concentrated acid)

HCl + Cu =? (it doesn't say that we can add anything)

Thank you!

CuO + H₂SO₄ = ? (it doesn't say it's concentrated acid)
Yes CuO is an oxide which easily dissolves in strong acids:
CuO + H₂SO₄ = CuSO₄ + H₂O

HCl + Cu =? (it doesn't say that we can add anything)
No. (at least without any external oxidizing agents)

[zileselakovic]

Thank you very much!