The number of moles of Al₂(SO₄)₃ is 1.2 mol
<u>Explanation:</u>
Given:
Volume of the solution, V = 501 mL
V = 0.501L
Molarity of the solution, M = 2.37M
Moles, n = ?
We know:
Molarity = 
On substituting the values we get:

Therefore, the number of moles of Al₂(SO₄)₃ is 1.2 mol
Orbit, natural satellites, international space station, moon
5, naked eye, Mercy, Venus, Mars, Jupiter, Saturn, solar system, 1
I would need to see the choices for this section
1.Stars
2. The Milky Way
3. The sun
4.8 minutes
5. Satellites
6. 100 thousand million
7. Canis Major Dwarf Galaxy
8. 10s of thousands of years
Answer: A. 
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q = Heat absorbed = 4.56 J
m = mass of substance = 123 g
c = specific heat capacity = ?
Change in temperature ,
Putting in the values, we get:


The specific heat of a 123 g substance that requires 4.56 J of heat in order to increase its temperature by 12.32 °C is 
Stored water is gravitational
Answer:
SO42 - Trigonal planar ion
Explanation:
The SO4^2- ion is tetrahedral and not trigonal planar because the sulphur atom has four regions of electron density which includes the lone pair of electrons on sulphur atom.
This accounts for the observed tetrahedral arrangement of electron pairs around the central sulphur atom in SO4^2- ion, hence the answer.