Answer:
B. CdSO4(aq) + K2S(aq) → CdS(s) + K2SO4(aq)
Explanation:
A precipitate reaction is when a solid forms, so in this case CdS is the precipitate.
Explanation:
NH₄F+ AICI₃, → NH₄CI + AlF₃
NH,F: in ionic form
NH₄⁺ + F⁻ = NH₄F
AICI in ionic form:
Al³⁺ + Cl⁻ = AlCl₃
NH Cl in ionic form:
NH₄⁺ + Cl⁻ = NH₄Cl
Al F in ionic form:
Al³⁺ + F⁻ = AlF₃
NH₄F+ AICI₃, → NH₄CI + AlF₃
Now we have to balance the equation with respect to the atoms:
aNH₄F+ bAICI₃, → cNH₄CI + dAlF₃
for N: a = c
H: 4a = 4c
F: a = 3d
Cl: 3b = c
let a = 1
c = 1
b = 
d = 
Therefore we can imply that:
a = 3, b = 1 , c = 3 and d = 1 if we multiply through by 3
3NH₄F+ AICI₃, → 3NH₄CI + AlF₃
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Chemical equation brainly.com/question/2924195
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Answer:
Explanation:
Deal with 1 mole first.
The chemical formula of Magnesium Phosphate is
Mg3(PO4)2
The 2 tells you that there are 2 mols of Phosphorus in the chemical.
1 mol of anything is 6.02 * 10^23 (in this case) atoms.
2 mols of anything is 12.04 * 10^23 atoms
2 moles of anything is 1.204 * 10^24 (the 2 answers are the same. This one is more correct in scientific notation.)
Now we come to the 5.01. Where does that go?
5.01 * Mg3(PO4)2
So multiply 1.204 * 10^24 by 5.01 When you do, you get
7.26 * 10^24 atoms
Are you trying to find density? if so divide 108g by 12cm3 which is 9g/cm3