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scZoUnD [109]
3 years ago
6

When iron metal reacts with oxygen, the reaction can form Fe2O3. Write a balanced chemical equation for this reaction, and find

the number of moles of oxygen that are needed to form 6 mol of Fe2O3 while showing your work.
Chemistry
2 answers:
ryzh [129]3 years ago
6 0
The balanced equation is 
4Fe+3O₂⇒2Fe₂O₃

We know that the mole of Fe₂O₃ is 6, and since the ratio between oxygen and <span>Fe₂O₃ is 3:2, we can see that

3:2 = x:6 (3 oxygen moles can make 2 </span>Fe₂O₃ moles = x oxygen moles can make 6 <span>Fe₂O₃ moles)
</span><span>
Multiply outside and inside (3*6 , 2*x) and put them on opposing sides of the equation

2*x = 3*6
2x=18
x=9
Therefore 9 moles of oxygen is needed.

</span>
-BARSIC- [3]3 years ago
4 0
The reaction Fe203 occurs when oxygen and iron metal react to each other. The complete balanced formula for the chemical equations will be " 4Fe + 302 -> 2 Fe203. You will need to multiply 6 mols by 3/2 (1.5) and that will give the 9 mols needed to find the number of moles of oxygen that are needed.
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yan [13]

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Explanation:

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Nuclear fusion: It is defined as the reaction where two smaller nuclei combine together to form a larger nuclei.

Option 1 & option 2 shows fusion reaction and option 3 & option 4 shows fission reaction.

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4 years ago
Convert 2.6 x 106 mL to L.
Lena [83]

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3 years ago
A well-known scientist testifies that she believes a piece of evidence is accepted by science. The judge rules that the evidence
notsponge [240]

Answer:

The correct answer is C:

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Cheers!

5 0
4 years ago
A piston in a heat engine does 500 joules of work, and 1400 joules of heat are added to the system. Determine the change in inte
san4es73 [151]

Answer : The change in internal energy is, 900 Joules.

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Formula used :

\Delta U=q+w

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As per question, heat is added to the system that means, q is positive and work done by the system that means, w is negative.

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Therefore, the change in internal energy is 900 J.

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