The earth is made up with three different layers
Answer:
Tl³⁺ + Sn²⁺ → Tl⁺ + Sn⁴⁺
Explanation:
In a redox reaction, one compound is oxidized (Loosing electrons) whereas the other compound is reduced (Gaining electrons). In the reaction, the half-reactions of oxidation and reduction are:
Sn²⁺ → 2e⁻ + Sn⁴⁺ (Oxidation: Loosing electrons)
Tl³⁺ + 2e⁻ → Tl⁺ (Reduction: Gaining electrons)
The sum of both reactions gives:
Tl³⁺ + Sn²⁺ + 2e⁻ → Tl⁺ + 2e⁻ + Sn⁴⁺
Subtracting the electrons:
<h3>Tl³⁺ + Sn²⁺ → Tl⁺ + Sn⁴⁺</h3>
substances changes back from solids to the liquids while condensation substances changes from a gas to liquids,and when vaporization happens the substance changes from a liquid to a gas.
<h3><u>Answer;</u></h3>
321.8 g CaF2
321.5 g Al2(CO3)3
<h3><u>Explanation;</u></h3>
The equation for the reaction is;
3 CaCO3 + 2 AlF3 → 3 CaF2 + Al2(CO3)3
Number of moles of CaCO3 will be;
=(412.5 g CaCO3) / (100.0875 g CaCO3/mol)
= 4.12139 mol CaCO3
Number of moles of AlF3 will be;
= (521.9 g AlF3) / ( 83.9767 g AlF3/mol)
= 6.21482 mol AlF3
But;
4.12139 moles of CaCO3 would react completely with 4.12139 x (2/3) = 2.74759 moles of AlF3.
Thus; there is more AlF3 present than that, so AlF3 is in excess, and CaCO3 is the limiting reactant.
Therefore;
Mass of CaF2 will be;
(4.12139 mol CaCO3) x (3/3) x (78.0752 g CaF2/mol) = 321.8 g CaF2
Mass of Al2(CO3)3 on the other hand will be;
(4.12139 mol CaCO3) x (1/3) x (233.9903 g Al2(CO3)3/mol) = 321.5 g Al2(CO3)3