Question

Please look at the picture and help me out

Answer 1

Answer:

Explanation:

1. 2

2. 3

3. 1

4. 2

5. The order of numbers from left to right would be: 2, 4, 3

Answer 2

Explanation:

$Al_2O_3\rightarrow Al+O_2$

Number of aluminum atoms the reactant side = 2

Number of oxygen atoms the reactant side = 3

Number of aluminum atoms the product side = 1

Number of oxygen atoms the product side = 2

Since, given reaction is not balanced chemical reaction:

So, the balanced chemical reaction is given by:

$2Al_2O_3\rightarrow 4Al+3O_2$

According to reaction,2 moles of aluminum oxide gives 4 moles of aluminum and 3 moles of oxygen gas.