Answer:
Chemical Change
Explanation:
It changes color and produces vapor when the foil is added to the solution.
<span>1 Cu + 2 H</span>₂<span>SO</span>₄<span> = 1 CuSO</span>₄<span> + 2 H</span>₂<span>O + 1 SO</span>₂
Coefficient od CuSO₄ = 1
hope this helps!
No, isotopes would have a different number of electrons
Heat energy is released to warm the house
