<u>Answer:</u> Amount of iron produced is 101.36 grams.
<u>Explanation:</u>
For the reaction of aluminium and iron oxide, the equation follows:
By Stoichiometry of the reaction,
When 1 mole of aluminium oxide is produced, then 2 moles of iron is also produced.
So, when 0.905 moles of aluminium oxide is produced, then 
of iron is also produced.
Now, to calculate the amount of iron produced, we use the equation:
Molar mass of iron = 56 g/mol
Moles of iron = 1.81 moles
Putting values in above equation, we get:
Hence, amount of iron produced is 101.36 grams.
No. Wulfenite has a hardness of 2.75-3.0 on the Mohs scale, so it is not hard enough to make a gem out of it.
Wulfenite is a very popular and highly sought-after mineral by collectors. It isused as a minor ore of lead and molybdenum.
Answer:
monochlorinated products: 4
dichlorinated products: 12
Explanation:
Chlorination of alkanes is a reaction that takes place when the chlorine is in presence of light. This actually decomposes the chlorine, and one atom of Chlorine substracts an hydrogen from the alkane. Now, this hydrogen substracted comes usually from the most substitued carbon, because it's more stable (A tertiary carbon is more stable than a secondary carbon, and this more stable than primary).
When this happens, the other chlorine atom, goes as electrophyle in that carbon and formed the chlorinated product. Now, although a tertiary carbon is more stable, we can still have (in minor quantities) chlorinated products that comes from a secondary and primary carbon. The first picture shows the general mechanism of the chlorination, and the possible products for a monochlorinated.
The second picture shows the possible dichlorinated products, which are in higher quantities than the monochlorinated basicallu because of the variety of positions the chlorine can be. So, second picture shows all the products.
Ionic bonds are the weakest bonds.
