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Pachacha [2.7K]
3 years ago
15

Which statements describe properties of stars? Check all that apply

Chemistry
2 answers:
blondinia [14]3 years ago
6 0

The following statements describes properties of stars;

  • Stars produce energy through nuclear fusion.
  • Stars are massive objects composed of gas.
  • Stars are composed primarily of hydrogen and helium

Explanation:

Stars mainly burn hydrogen gas in their core by fusion to produce the enormous energy they produce. Due to the immense gravity form their mass, stars are able to compress hydrogen gas in their core such that the atoms of the gas fuse to form heavier elements like helium. In the process, high energy is released such as in the form of electromagnetic radiation and neutrons. If the star is even bigger (supermassive stars), they are able to fuse helium into carbon dioxide producing even more fusion energy. Therefore, starts are mainly enormous blobs of burning gases.

Learn More:

For more on fusion in stars check out;

brainly.com/question/10811772

brainly.com/question/3035475

#LearnWithBrainly

7nadin3 [17]3 years ago
5 0

Answer:

A C and E

Explanation:

I took the test

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Which statement best describes the formula equation cl1(g) + 2kbr(aq) —> 2kcl(aq)+br2(i)
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Answer:

The chlorine gas and potassium bromide solution react to form liquid  bromine and potassium chloride solution.

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Cl₂(g) + KBr (aq) → KCl (aq) + Br₂(l)

Balanced chemical equation:

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This equation showed that the chlorine gas and potassium bromide solution react to form liquid  bromine and potassium chloride solution.

Chlorine is more reactive than bromine it displace the bromine from potassium and form potassium chloride solution.

The given equation is balanced and completely hold the law of conservation of mass.

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

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