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Serjik [45]
3 years ago
8

List two sources from which Earth receives its energy.

Chemistry
1 answer:
nignag [31]3 years ago
7 0
Geothermal (volcanoes and heat sources from the earth) and solar
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True or false: Energy is always transferred from high kinetic energy (temperature) too low kinetic energy (low temperature)
Roman55 [17]

Answer:

true

Explanation:

Temperature is a measure of the average kinetic energy of the molecules, so energy would naturally be transferred from the molecules with more kinetic energy to the molecules with less kinetic energy

5 0
3 years ago
2.50 L of a gas at standard temperature and pressure is compressed to 575 mL. What is the new pressure of the gas
vfiekz [6]

Answer:

4.35 atm

Explanation:

According to the information given;

  • Initial volume of the gas, V₁ is 2.50 L
  • Initial pressure of the gas is standard pressure P₁, normally 1 atm
  • New volume of the gas, V₂ is 575 mL

We are required to determine the new pressure of the gas, P₂ ;

To answer the question, we are going to use the Boyle's law, that relates pressure and volume at constant temperature.

According to Boyle's law;

P₁V₁ = P₂V₂

Therefore, to determine the new pressure, P₂, we rearrange the formula;

New pressure, P₂ = P₁V₁ ÷ V₂

Thus;

P₂ = ( 1 atm × 2.50 L) ÷ 0.575 L

    = 4.3478 atm

     = 4.35 atm

Therefore, the new pressure of the gas is 4.35 atm

6 0
3 years ago
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10 points) Which is larger? Ba²+ or Ba<br> explain
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Answer:

<u>Ba is larger than Ba2 + B a 2 + because it has two more electrons.</u>

Explanation:

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6 0
1 year ago
What color did you observing of marker?not color its a pure of in​
Gekata [30.6K]
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7 0
3 years ago
Is this statement true or false?<br><br> Gymnosperms reproduce using seeds, but angiosperms do not.
spayn [35]

Answer:

FALSE!

Explanation:

Gymnosperms do use seeds but are exposed like the pine cones of pines. Angiosperms still have seeds, however, they flower or fruit.

3 0
3 years ago
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