Which statement best describes the role that gravity played in the formation of our solar system?

Chemistry

2 answers:

Anna35 [415]4 years ago

8 0

<span>d*Gravity pulled particles of dust and gas together to form planets.

hope this helps</span>

pochemuha4 years ago

8 0

The correct answer is D. Gravity pulled particles of dust and gas together to form planets.

Explanation:

Gravity is a force of attraction that acts in all universe, and makes objects with more matter attract objects with less matter. This force played an important role in the formation of our solar system. Because it is believed after the big bang occurred, there was a massive cloud of dust, gas, and particles (nebula) and due to the force exerted by gravity, these particles were pulled together forming clumps of different sizes and characteristics that were later the planets, moons and other structures that remain until today. Also due to the force of gravity the sun was formed and planets orbit around it. According to this, the role of gravity in the formation of our solar system was gravity pulled particles of dust and gas together to form planets.

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Answer:

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Explanation:

a) We need to first convert Cu2S to moles. Since molar mass of Cu2S is 159.14 g/mol, 14.0 g = 0.0880 mol. Using molar ratios (3 mol O2/2 mol Cu2S, 0.0880 mol of Cu2S = 0.132 mol O2. Since 1 mol contains 6.02 x 10²³ molecules, 0.132 mol O2 = 7.94 x 10²² molecules O2.

b) Since the molar ratios of Cu2S to SO2 is 1:1, 0.0880 mol of Cu2S produces 0.0880 mol SO2. To convert mol to grams, we use the molar mass of SO2 (64.06 g/mol) to figure out that 0.0880 mol SO2 = 5.63 g SO2.

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3 years ago

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