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madam [21]
3 years ago
12

What do molecules put together form?

Chemistry
1 answer:
trasher [3.6K]3 years ago
4 0

Molecule add molecule is a compound
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12<br> -4<br> si<br> -8<br> -4<br> 0<br> 4<br> 8<br> -4
sergeinik [125]

Answer:

hulaan mo nlng

Explanation:

dko den alam ehh

6 0
2 years ago
Under standard-state conditions, which of the following half-reactions occurs at the cathode during the electrolysis of aqueous
Slav-nsk [51]

Answer:

The following reaction will occur at cathode:

Ni^{+2}(aq)+2e--->Ni(s)

Explanation:

The two half reaction during electrolysis of aqueous nickel sulfate will be

a) anode reaction :

Water will undergo oxidation and will evolve oxygen gas at anode as shown in the given reaction:

2H_{2}O(l) ----> O_{2}(g) + 4H^{+}(aq) + 4e

b) Cathode reaction: The reduction of Nickel ion will occur by gain of two electrons as shown in the given equation:

Ni^{+2}(aq)+2e--->Ni(s)

Thus the overall reaction will be:

2H_{2}O(l) + 2Ni^{+2}----> O_{2}(g) + 4H^{+}(aq) + 2Ni(s)

6 0
2 years ago
a solution is made by dissolving cadmium fluoride (CdF2 Ksp =6.44×10 −3 ) in 100.0 mL of water until excess solid is present. So
Lunna [17]

Answer:

Answers are in the explanation

Explanation:

Ksp of CdF₂ is:

CdF₂(s) ⇄ Cd²⁺(aq) + 2F⁻(aq)

Ksp = 6.44x10⁻³ = [Cd²⁺] [F⁻]²

When an excess of solid is present, the solution is saturated, the molarity of Cd²⁺ is X and F⁻ 2X:

6.44x10⁻³ = [X] [2X]²

6.44x10⁻³ = 4X³

X = 0.1172M

<h3>[F⁻] = 0.2344M</h3><h3 />

Ksp of LiF is:

LiF(s) ⇄ Li⁺(aq) + F⁻(aq)

Ksp = 1.84x10⁻³ = [Li⁺] [F⁻]

When an excess of solid is present, the solution is saturated, the molarity of Li⁺ and F⁻ is XX:

1.84x10⁻³ = [X] [X]

1.84x10⁻³ = X²

X = 0.0429

<h3>[F⁻] = 0.0429M</h3><h3 /><h3>The solution of CdF₂ has the higher fluoride ion concentration</h3>
7 0
3 years ago
Which of the following combinations of quantum numbers (n, l, ml, ms) do not represent permissible solutions of the schrodinger
Softa [21]
Option c. 6, -5, -1, 1/2

Because the second quantum number, l, cannot be negative.

The values of l are restricted to the range 0 to n -1, which in this case is 0, 1, 2, 3, 4 and 5.
8 0
2 years ago
Magnesium (Mg) has an atomic number of 12. What is the ground-state electron configuration of magnesium?
Brums [2.3K]

C. 12222632

You have to follow the Aufbau principle, which states that electrons populate the atomic orbitals situated at the lowest energy first.


The orbitals are:

1

22

333

4444

5555

666

77

4 0
3 years ago
Read 2 more answers
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