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Alla [95]
3 years ago
9

Compare and contrast Aufbau principle and the Pauli exclusion principle.

Chemistry
1 answer:
lapo4ka [179]3 years ago
6 0

Answer: Pauli exclusion principle: only two electrons can occupy the same orbital and they must have opposite spin directions

Explanation:

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Debora [2.8K]

Explanation:

Their force of attraction is strongest in the middle of the magnet.

4 0
2 years ago
Read 2 more answers
Is burning of wood a reversible or irreversible change
nignag [31]

Answer:

burning of wood is an irreversible change bcoz wood after burning wood converted to ashes cannot be converted back to wood nd its chemical composition also changes

3 0
3 years ago
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What is the concentration of a solution that has a volume of 2.5L and contains exactly 2.125 moles of calcium phosphate
Iteru [2.4K]

Answer:

0.85 mol/L.

Explanation:

  • Molarity is defined as the no. of moles of solute dissolved in a liter of the solution.

<em>M = (no. of moles of solute)/(Volume of the solution (L))</em>

no. of moles of calcium phosphate = 2.125 mol.

Volume of the solution = 2.5 L.

<em>∴ M of calcium phosphate</em> = (2.125 mol)/(2.5 L) = <em>0.85 mol/L.</em>

7 0
3 years ago
Express 345.6 in scientific notation
Gnom [1K]
3.456 x 10^2 is the answer you're looking for.
6 0
3 years ago
Write BE if the statement is Beneficial Effect to the sun’s heat and light, HE if it is Harmful Effect of the sun’s heat and lig
mrs_skeptik [129]

Based on exposure time and place, the Sun's radiation may have harmful or beneficial effects.

<h3>What is solar radiation?</h3>

Solar radiation refers to the radiation from the Sun in the form heat, light and other forms of radiation.

The radiation from the Sun may have harmful or beneficial effects.

The effects of the Sun's radiation can be classified as BE, HE or SP as follows:

  • BE- UV rays can help treat some health conditions. It creates Vitamin D
  • SP- Use sunblock lotion with SPF 15 during hot days.
  • BE- With the presence of sunlight, farmers can dry their crops.
  • HE- UV rays can damage the tissue in your eyes.
  • BE- Research says that sunlight helps moods.
  • HE- Too much exposure from the sun can cause skin cancer.
  • SP- Use sunglasses when you stay under the sun.
  • SP- Wear a wide- brimmed hat on sunny days.
  • BE- Humans can do recreational activities on a sunny day.
  • SP- Wear sunglasses that filter UV light.
  • HE- Prolonged exposure to the sun’s heat makes your skin age faster than normal.
  • HE- Too much heat from the sun can cause heat stroke and loss of water.
  • BE- Sunlight helps strengthen your immune system.
  • BE- The vitamin D made thanks to the sun plays a big role in bone health.
  • SP- Avoid sun in the middle of the day, from about 10 a.m. to 3 p.m.

Learn more about Sun's radiation at: brainly.com/question/921530

#SPJ1

6 0
2 years ago
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