Answer:
a. alumina
b. corundum
h. bauxite
Explanation:
The following compounds have the maximum amount of Aluminum oxide -
Alumina -
Alumina is known as the aluminium oxide , with a formula of ,
It is the most commonly occuring oxide of Aluminum metal .
Corundum -
It is the crystalline form , with the molecular formula of ,
It also have some trace of other metals like , chromium , vanadium , titanium.
bauxite -
It is the sedimentary rock , which has very high quantity of Aluminium metal .
Answer:
A
Explanation:
Using the equation above, the dipole moment is calculated to be 1.85 D by multiplying the distance between the oxygen and hydrogen atoms by the charge difference between them and then finding the components of each that point in the direction of the net dipole moment (the angle of the molecule is 104.5˚).
Answer:
mass of water in hydrate = 2.37 grams
Explanation:
The mass of the hydrated cobalt (III) chloride is the summation of the salt and the water it contains.
This means that:
Total mass of sample = mass of salt + mass of water
Now, we are given that:
total mass of sample = 5.22 grams
mass of salt = mass of sample after heating = 2.85 grams
Substitute to get the mass of water as follows:
5.22 = mass of water in hydrate + 2.85
mass of water in hydrate = 5.22 - 2.85
mass of water in hydrate = 2.37 grams
Hope this helps :)