Answer: 8 moles of Fe
Explanation:
If 2 moles oxide give 4 moles Fe, so 4 moles oxide gives 8
SI Unit
I'm not 100% sure but I think that's right. Hope I helped you in any way.
Answer:
He (Helium)
Explanation:
According to the Periodic Table, our noble gases are:
Helium - Element 2
Neon - Element 10
Argon - Element 18
Krypton - Element 46
Xenon - Element 54
Radon - Element 86
The electron gain for iron means that it is reduced (answer C)
Explanation
Redox reaction is made up of two halves.
That is a reduction half and a oxidization half.
In the reduction half electrons are gained which result to decrease in oxidation number.
In the Oxidization half electrons are lost which result to increase in oxidation number.
iron is therefore reduced since it gains electrons
Answer:
a double replacement reaction, because the hydrogen of the acid change places with the potassium of the base, forming salt and water...