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ryzh [129]
3 years ago
12

The photo shows wires made of pure copper, an element,

Chemistry
1 answer:
Strike441 [17]3 years ago
3 0
I can’t see the picture but a atom I think
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What is the concentration of hydronium ions in a 0.01m solution of hcl?
Alina [70]

Answer:

  • <u>0.01 M</u>

Explanation:

<u>1) Dissociation:</u>

Since HCl is a strong acid, it dissociates 100% in water to form hydronium (H₃O⁺) and chloride (Cl⁻) ions, as per this chemical equation:

  • HCl + H₂O → H₃O⁺ + Cl⁻

<u>2) Concentrations:</u>

Hence, each mole of HCl molecules yields 1 mol of hydronium ( H₃O⁺) and 1 mol of chloride (Cl⁻) ions.

Thus, [HCl] = [H₃O⁺] = [Cl⁻] = 0.01 M

<u>3)  Conclusion:</u> the concentraion of hydronium ions in a 0.01 M solution of HCl is 0.01 M

8 0
3 years ago
Pls answer correctly!! very important!!
ollegr [7]

Answer:1

Explanation:

5 0
3 years ago
For a spontaneous process, which of the following MUST be true?
Maru [420]

Answer:

C;  ΔSuniv>0

Explanation:

In this question, we want to select which of the options must be true.

What we should understand is that for a process to be spontaneous, the change in entropy must be greater than 0 i.e the change in entropy must be positive.

Looking at the options we have; option C is the correct answer.

Option B looks correct but it is wrong. This is because if change in universal entropy is greater than zero, then change in Gibbs free energy must be less than zero for spontaneity to occur

5 0
4 years ago
Which statement is correct about the water cycle?
OleMash [197]

Answer:

precipitation is when water flows into the ground

Explanation:

.................

7 0
3 years ago
Polonium-218 undergoes beta decay, converting a neutron into a proton. Then the daughter isotope undergoes another beta decay, a
sergij07 [2.7K]

Answer: ^{218}_{84}Po \rightarrow ^{218}_{85}At + ^{0}_{-1}e is the correct equation for beta decay.

Explanation:

When a beta particle, that is, ^{0}_{-1}e is emitted in a radioactive decay then it is known as beta decay.

Therefore, beta decay of Polonium-218 is as follows.

^{218}_{84}Po \rightarrow ^{218}_{85}At + ^{0}_{-1}e

Therefore, we can conclude that ^{218}_{84}Po \rightarrow ^{218}_{85}At + ^{0}_{-1}e is the correct equation for the given beta decay.  

8 0
3 years ago
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