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Furkat [3]
3 years ago
5

Which of these statements is true about planets? Planets

Chemistry
2 answers:
Masja [62]3 years ago
8 0

Answer:

D. all of the above

Explanation:

A and C are verified by Keplar's laws of planetary motion.

B is verified by the equatorial and polar aces of the Planet.

irga5000 [103]3 years ago
8 0

Answer:

c

Explanation:

they dont have to orbit the sun specifically and are commonly more ovoid than spherical

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2. A gas has volume of 4.2L at 110 kPa. If temperature is constant, find the pressure of gas when the volume is change to 11.3L.
muminat

Answer:

40.88 kPa.

Explanation:

Given that,

Volume, V₁= 4.2 L

Pressure, P₁ = 110 kPa

We need to find the pressure of the gas when the volume is changed to 11.3L at constant temperature.

According to Boyle's law, at constant temperature, volume is inversely proportional to the pressure. Mathematically,

P_1V_1=P_2V_2\\\\P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{4.2\ L\times 110\ kPa}{11.3\ L}\\\\P_2=40.88\ kPa

So, the new pressure is 40.88 kPa.

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3 years ago
A real gas behaves least like an ideal gas under the conditions of
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Answer: Option (2) is the correct answer.

Explanation:

A real gas behaves least like an ideal gas under the conditions of low temperature and high pressure.

This is because at low temperature and high pressure molecules of gas will have negligible kinetic energy and strong force of attraction. Thus, real gas will not behave like an ideal gas.

Whereas at high temperature and low pressure a real gas will behave like an ideal gas.


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Answer:

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Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals.

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How does science help us protect our nations resources.
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