Question

Fe2O3 + Al —> Cu(OH)2 —> Mg + O2 —>

Answer 1

Ответ на фотографии............

Answer 2

It seems like you've written a series of chemical reactions using chemical formulas. However, the reactions you've listed are not balanced, and the second reaction product is copper hydroxide (Cu(OH)2), which doesn't participate in the subsequent reactions. Additionally, the final product is missing.

Let's try to balance the reactions and include a final product. I'll assume you meant to use CuO (copper oxide) instead of Cu(OH)2. Here are the balanced equations:

1. Fe2O3 + 2 Al → 2 Fe + Al2O3
2. 2 Al2O3 → 4 Al + 3 O2
3. The final product from the previous reaction (O2) can be balanced in a combustion reaction with magnesium (Mg): 2 Mg + O2 → 2 MgO

Now, the overall balanced reaction would be:

Fe2O3 + 2 Al → 2 Fe + Al2O3 → 4 Al + 3 O2 → 2 Mg + O2 → 2 MgO