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SOVA2 [1]
2 years ago
10

Which element gains two electrons to fill its outermost energy level?

Chemistry
1 answer:
laiz [17]2 years ago
4 0
O magnesium Mg is the answer
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When mantle rocks near the radioactive core are heated, they become less dense than the cooler, upper mantle rocks. These warmer
Delicious77 [7]

C) convection cells (currents)

Explanation:

The movement of warmer cooler mantle rocks creating a circulation within the mantle is called a convection cell. These are the forces that drives the plate over asthenosphere.

  • Convection is form of heat transfer predominant in liquids and gases.
  • The mantle is molten and heated from heat within the core and the decay of radioactive bodies.
  • Hot bodies are light and tend to be more buoyant. This causes warm mantle to rise to the surface.
  • The cold part are denser and heavier, they sink in the mix.
  • This creates pockets of circulation pattern within the mantle called convection cells.

Learn more:

Lithosphere brainly.com/question/9582362

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3 years ago
Explain how knowledge of acids/bases and neutralization can apply to the treatment of soil acidification
sammy [17]

Explanation:

If soil consists of more acidic nature then, it does not allow plant growth.

In that situation, treat the soil with (anti-acid which is nothing but) base.

When an acid reacts with a base, a neutralization reaction takes place and salt and water are formed in this reaction.

The equation is shown below:

acid+base-> salt +water

For example, if the soil has more sulphuric acid traces then, it should be treated with lime.

H_2SO_4(aq)+Ca(OH)_2(aq)->CaSO_4(aq)+2H_2O(l)

6 0
3 years ago
Which part of an atom has a negative electric charge?
kherson [118]

Answer: A:electrons

Explanation:

4 0
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Which of the following best represents potential energy being converted to kinetic energy? (2 points) The chemical energy in a b
Ilia_Sergeevich [38]

Answer: A woman kicks a soccer ball and scores a goal.

Explanation:

Potential energy: it is the energy possessed by the body due to its position.

Kinetic energy: it is the energy possessed by the the body  due to its motion.

When a woman kick's a soccer ball she transferred her potential energy to soccer ball.Due to this action soccer ball comes into motion which means potential energy imparted to the ball starts getting converted into kinetic energy.

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3 years ago
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What is crystal field splitting?
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Answer:

Crystal field splitting is the difference in energy between d orbitals of ligands. Crystal field splitting number is denoted by the capital Greek letter Δ. Crystal field splitting explains the difference in color between two similar metal-ligand complexes.

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