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castortr0y [4]
2 years ago
15

Each period in the periodic table corresponds to

Chemistry
2 answers:
MrRa [10]2 years ago
7 0
Number of electron shells
Charra [1.4K]2 years ago
6 0
How many energy levels each element has
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Which of the following statements concerning the measured number 0.3030
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Answer:

C

Explanation:

If you move the decimal to the left it transforms the expression into scientific notation.

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What are the main method of combination?<br><br>​
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Explanation:

Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds

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2 years ago
How many grams of solid nickel will be plated if an aqueous nickel(II) sulfate solution is electroplated over 10.5 min with a co
Anna71 [15]

Answer:

613 mg

Explanation:

$Ni^{2+} + 2e \rightarrow Ni(s)$

Number of fargday's  $=\frac{It}{96500}$

Here, I = 9.20 A

        t = 10.5 min

          = 10.5 x 60 seconds

So, $\frac{It}{96500}$

  $=\frac{3.20 \times 10.5 \times 60}{96500}$

 = 0.0208 F

Here, 2e, 2F

2F = 1 mol of Ni

$0.0208 \ F = \frac{0.0208}{2} = 0.0104 \ mol \ Ni$

1 mol = 59 gm of Ni

0.0104 mol = 59 x0.0104 gm Ni

                    = 0.613 gm Ni

                    = (0.613 x 1000 ) mg of Ni

                    = 613 mg of Ni

3 0
2 years ago
Specific gravity of a vegetable oil is 0.85. What is its density?
elena-s [515]
I think its density is 850kg/m^3
6 0
2 years ago
Theoretical<br> Yield of Cu<br> based on<br> Amount of CuSO4
fiasKO [112]

Answer:

I hope this helps.

Explanation:

6 0
2 years ago
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