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earnstyle [38]
3 years ago
14

How many valence electrons in this electron configuration 1S2 2S2 2P6 3S2

Chemistry
1 answer:
Liono4ka [1.6K]3 years ago
5 0

Answer:

Explanation:

Electron Configurations

A B

Fluorine 1s2 2s2 2p5

Neon 1s2 2s2 2p6

Sodium 1s2 2s2 2p6 3s1

Magnesium 1s2 2s2 2p6 3s2

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Solutions with water as the solvent are called
Soloha48 [4]

Answer:

C. Aqueous Solutions

General Formulas and Concepts:

<u>Aqueous Solutions</u>'

  • Dissociation
  • Solvents and Solutions

Explanation:

Water is the universal solution that solvents are dissolved in. Whenever anything is dissolved in water, it will be an aqueous solution.

Strong ionic solutions dissolve into their ions when dissolved in water.

Weak acids and bases don't fully dissociate in water.

8 0
3 years ago
To make a 0.500 M solution, one could take 0.500 moles of solute and add Group of answer choices enough solvent to make 1.00 kg
Fiesta28 [93]

<u>Answer:</u> The correct option is enough solvent to make 1.00 L of solution

<u>Explanation:</u>

A solution consists of solute and solvent. A solute is defined as the component present in a smaller proportion while the solvent is defined as the component that is present in a larger proportion.

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

Molarity=\frac{Moles}{Volume} .......(1)

We are given:

Molarity of solution = 0.500 M

Moles of solute = 0.500 moles

Putting values in equation 1, we get:

0.500mol/L=\frac{0.500mol}{\text{Volume of solution}}\\\\\text{Volume of solution}=\frac{0.500mol}{0.500mol/L}=1.00L

Hence, the correct option is enough solvent to make 1.00 L of solution

5 0
3 years ago
, determine the approximate volume of the block.
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I believe the answer is A. 40 mL
8 0
3 years ago
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Aside from direct harm, what secondary issue do invasive species present?
solniwko [45]

Answer:

B

Explanation:

6 0
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