There are 20n nutrons in the atom k-42.
Answer:
density=6.74g/ml
:320g÷47.5ml
d=6.74g/ml
thank you
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Answer:
C = 0.08M
Explanation:
molar mass of AlCl3
Al =27
Cl = 35.5
27+3(35.5) =133.5g/mol
n= mass/Molar mass
n =CV
CV = mass/molar mass
C x 500 x 10^-³ = 5/133.5
C x 500 x 10^-³ = 0.04
C = 0.04/500 x 10^-³
C = 0.08M
Do you know the formula? I can’t find it.
Explanation:
The problem is in balancing the reaction equation;
Li + AlCl₃ → LiCl + Al
In balancing chemical equations, we must keep the law of conservation of matter in mind.
The law shows that the number of atoms on both sides of the reaction must be the same.
To balance the given equation, we set up simple, solvable algebraic mathematical expressions:
aLi + bAlCl₃ → cLiCl + dAl
Coefficients a, b,c and d
Conserving:
Li: a = c
Al: b = d
Cl: 3b = c
let b = 1;
d = 1
c = 3
a = 3
3Li + AlCl₃ → 3LiCl + Al
learn more:
Balanced chemical equation brainly.com/question/2947744
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