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joja [24]
3 years ago
7

How many electrons are being shared between the two carbon atoms in the compound ethyne? Ethyne has the Lewis structure: H−C≡C−H

Chemistry
1 answer:
Komok [63]3 years ago
8 0
Thhhhhhhhhhhhhhhe ansssssssssswerrrrrrrrrrrrrrrrrrr is 4!
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13. What is the charge of an aluminum ion that has 13 protons and 10 electrons?
Ksenya-84 [330]

Answer:

+ 3

Ex planation:

Al3+ indicates an ion of aluminum having a charge of + 3. I.e., since an aluminum atom normally has 13 protons and 13 electrons, this ion has 10 electrons (-10 charge) and 13 protons (+ 13 charge) giving it a charge of + 3 (-10 + 13 = +3).

hope this helps!

7 0
4 years ago
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Blank measurements are useful for determining buoyancy and identifying relationships between substances.
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3 years ago
Calculate the volume in liters of a M potassium dichromate solution that contains of potassium dichromate . Round your answer to
maksim [4K]

The question is incomplete, here is the complete question:

Calculate the volume in liters of a 0.13 M potassium dichromate solution that contains 200. g of potassium dichromate . Round your answer to 2 significant digits.

<u>Answer:</u> The volume of solution is 5.2 L

<u>Explanation:</u>

To calculate the volume of solution, we use the equation used to calculate the molarity of solution:

\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}

We are given:

Molarity of solution = 0.13 M

Given mass of potassium dichromate = 200. g

Molar mass of potassium dichromate = 294.15 g/mol

Putting values in above equation, we get:

0.13M=\frac{200}{294.15\times \text{Volume of solution}}\\\\\text{Volume of solution}=\frac{200}{294.15\times 0.13}=5.23L

Hence, the volume of solution is 5.2 L

3 0
3 years ago
Answer number six please
soldier1979 [14.2K]

the second one

forth one

and sixth one


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Which subatomic particle plays the greatest part in determining the properties of an element?
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3 years ago
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