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Arada [10]
3 years ago
11

2H+ H- H+ n + energy

Chemistry
1 answer:
lbvjy [14]3 years ago
5 0

from an external source of power

Explanation:

The energy needed for nuclear fusion comes from an external source of power.

Nuclear fusion is the combination of small sized atomic nuclei to form larger ones.

The reaction releases a huge amount of energy but also requires a large activation energy to start up.

  • The energy input require to drive two nuclei into fusion comes from an external source.
  • Nuclear fusion has a high activation energy which serves as the energy barrier for this reaction to take place.
  • The energy comes from the surrounding and once initiated, spontaneous chain reactions are set up.

learn more:

Nuclear reactions brainly.com/question/10094982

#learnwithBrainly

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Do you agree or disagree with the following statement:
Anarel [89]

Answer:

Agree

Explanation:

Theories are refined and then become laws and laws are somehow more important than theories. In science actually what a law is, is a descriptive generalization. So we talk about the laws of thermodynamics that tell you about heat under different circumstances.

5 0
2 years ago
an aqueous solution has a mass of 490 grams containing 8.5×5103 gram of calcium ions. the concentration of calcium ions is in th
Alex777 [14]
There are several various of expressing concentration. For instance, mass percent, volume percent, Molarity, Normality, Molality, etc.

In present case, weight of solute and solvent are given, so it will be convenient to express concentration in terms of mass percent.

Given: weight of solute (Ca2+) = 8500 g
weight of solvent (water) = 490 g.
Therefore, mass of solution = 8500 + 490 = 8990 g

Now, mass percent = \frac{\tect{Weight of solute}}{\text{Weight of solution}} X 100
                               = \frac{\tect{8500}}{\text{8990}} X 100
                               = 94.55 %

Answer: Concentration of calcium ions is in this solution is 94.55 % (w/W)
8 0
3 years ago
Who discovered phosphate?
iris [78.8K]

Answer:

Hennig Brand

Explanation:

4 0
3 years ago
D is a green crystalline solid that dissolves in water to give a very pale green solution addition of sodium hydroxide solution
Ksivusya [100]

Answer:

I think its iron(II) oxide

Explanation:

The substance is black but when it's mixed with water it turns green solution so when mixed with sodium Hydroxide it turns green

5 0
2 years ago
If you burn 46.0 g of hydrogen and produce 411 g of water, how much oxygen reacted?
g100num [7]
The answer is 365 grams because you need to subtract 411 by 46.
3 0
3 years ago
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