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ANTONII [103]
2 years ago
11

WRITE THE ELECTRONIC CONFIGURATION OF THE FOLLOWING ELEMENT

Chemistry
2 answers:
Sunny_sXe [5.5K]2 years ago
5 0
1 Hydrogen 1s1
2 Helium 1s2
3 Lithium 2s1
castortr0y [4]2 years ago
5 0

Answer: WHAT IS THE ELEMENT NAME?

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Your teacher needs a 3.0M solution acid, but only has a 12.0M stock solution of sulfuric acid in the chemical store room. Calcul
arlik [135]

Answer:

The calculations are in the explanation below.

The <em>steps </em>are:

  • 1. Using a graduated pipette, accurately take 25mL of the 12.0M stock solution.
  • 2. Pour the 25mL of stock solution into a 100 mL volumetric flask
  • 3. Add distilled water up to the mark
  • 4. Cap the flask with the stopper
  • 5. Stirr by gently rotating the flask.

Explanation:

To make 100 mililiter of the 3.0M solution of sulfuric acid, first you must calculate the volume of the 12.0M stock solution that contains the same number of moles as the diluted solution.

For that, you use the dilution formula:

  • number of moles = C₁V₁ = C₂V2
  • 12.0M×V₁ = 3.0M × 100mL
  • V₁ = 3.0M × 100mL/12.0M = 25mL

Then, the steps are:

1. Using a graduated pipette, accurately take 25mL of the 12.0M stock solution.

2. Pour the 25mL of stock solution into a 100 mL volumetric flask

3. Add distilled water up to the mark

4. Cap the flask with the stopper

5. Stirr by gently rotating the flask.

3 0
3 years ago
_____________ is the energy stored because of its position or shape.
Natasha2012 [34]

Answer:

Potential Energy is the energy stored because of its position or shape

Explanation:

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6) Explain in your own words what the "danger zone" is and why it is important to safe food preparation.
ArbitrLikvidat [17]

Explanation:

The danger zone is= that people within the danger zone cannot freely enter and exit this region. school activities are closed, economic activities are stopped, worship activities are also closed.

why it is important to safe food preparation= stocking food when the danger zone is important. because in the danger zone, people are limited to activities outside the home.

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4 years ago
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