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stira [4]
3 years ago
8

Write the complete electron configuration for sodium ion

Chemistry
1 answer:
Katena32 [7]3 years ago
7 0
Sodium ion has 10 electrons. So: 1s^2 2s^2 2p^6
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Metallic copper is formed when aluminum reacts with copper(ii) sulfate. how many grams of metallic copper can be obtained when 5
exis [7]
Answer is: 127 grams <span>rams of metallic copper can be obtained.
</span>Balanced chemical reaction: 2Al + 3CuSO₄ → Al₂(SO₄)₃ + 3Cu.
m(Al) = 54.0 g.
n(Al) = m(Al) ÷ M(Al).
n(Al) = 54 g ÷ 27 g/mol.
n(Al) = 2 mol.
m(CuSO₄) = 319 g.
n(CuSO₄) = 319 g ÷ 159.6 g/mol.
n(CuSO₄) = 2 mol; limiting reactant.
From chemical reaction: n(CuSO₄) : n(Cu) = 3 : 3 (1 : 1).
n(Cu) = 2 mol.
n(Cu) = 2 mol · 63.55 g/mol.
n(Cu) = 127.1 g.
8 0
3 years ago
does adding boiled, deionized water to the titrating flask to wash the wall of the erlenmeyer flask and the buret tip increase,
olga55 [171]

Addition of  boiled, deionized water to the titrating flask to wash the wall of the erlenmeyer flask and the buret tip will have no effect on the Ksp value of ca(oh)2.

There will be no effect on the Ksp value as boiled deionised water is not able to alter the number of hydronium and hydroxide ions. As no change in the ions happen so there will be no change in Ksp value. The equilibrium constant for a solid material dissolving in an aqueous solution is the solubility product constant, Ksp. It stands for the degree of solute dissolution in solution. A substance's Ksp value increases with how soluble it is.

To know more about, solubility product constant, click here,

brainly.com/question/6960236

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4 0
1 year ago
How many valence electrons do the noble gases possess?
8090 [49]

Answer:

Have no valence electrons because they are stable.

Thank you.

BY GERALD GREAT

6 0
3 years ago
1. What would you need to know in order to predict what color of skin your offspring would<br> have?
Blizzard [7]

Answer:

I believe you would need to know how much melanon you have and how much melanon your partner has. Correct me if i'm wrong. I hope this helps!

6 0
3 years ago
What is a genetic mutation
salantis [7]

Answer:

a mutation is a change in a DNA sequence

Explanation:

mutations can result from DNA copying mistakes made during cell division

5 0
3 years ago
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