Pergunta

88 MULTIPLE CHOICE Question 10 The chemical equation below shows the reaction that takes place when rust forms. How many moles of oxygen are required to make 2 moles of iron (III) ox- ide (Fe_(2)O_(3)) 4Fe_((s))+3O_(2(g))arrow 2Fe_(2)O_((s)) A 1 mole B 2 moles C 4 moles D 3 moles
Solução

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Helena MariaEspecialista · Tutor por 3 anos
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D 3 moles
Explicação
## Step 1
The given chemical equation is:
This equation tells us that 4 moles of iron (Fe) react with 3 moles of oxygen (O2) to produce 2 moles of iron (III) oxide (Fe2O3).
## Step 2
We are asked to find out how many moles of oxygen are required to produce 2 moles of iron (III) oxide.
## Step 3
We can set up a proportion to solve this:
## Step 4
Solving for x gives us:
The given chemical equation is:
This equation tells us that 4 moles of iron (Fe) react with 3 moles of oxygen (O2) to produce 2 moles of iron (III) oxide (Fe2O3).
## Step 2
We are asked to find out how many moles of oxygen are required to produce 2 moles of iron (III) oxide.
## Step 3
We can set up a proportion to solve this:
## Step 4
Solving for x gives us:
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