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3 years ago

Earth has one moon and mars has two moons. how many more moons are found around the outer planets than the inner planets?

2 answers:

7 0

The outer planets are <span>Jupiter, Saturn, Uranus and Neptune while the inner planets are Mercury, Venus, Earth, and Mars. The outer planets have more moons than the inner planets because these planets are much larger than the inner ones. The inner planets are terrestrial while larger ones are called gas giants, mostly made up of gas.</span>

Fudgin [204]3 years ago

5 0

Answer:

There are 8 planets in the solar system. 4 inner planets are Mercury, Venus, Earth and Mars.

Mercury and Venus don't have any moons. Earth has one moon. Mars has two moons.

The 4 outer planets are: Jupiter, Saturn, Uranus and Neptune.

Jupiter has 67 moons, Saturn has 62 moons, Uranus has 27 and Neptune has 14 moons.

The outer planets have about 167 more moons than inner planets. Thus, outer planets have many more moons than inner planets.

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1. A gas has a volume of 45 L at a pressure of 140 kPa. What is the volume when

pishuonlain [190]

Answer:

The new volume of the gas is 21 L.

Explanation:

Volume of a gas is inversely proportional to its pressure at constant temperature such that,

$V\propto \dfrac{1}{P}$

$P_1V_1=P_2V_2$

We have,

$V_1=45\ L\\\\P_1=140\ kPa \\\\P_2=300\ kPa$

It is required to find V₂. Using above law or Boyle's law such that :

$V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{140\times 45}{300}\\\\V_2=21\ L$

So, the new volume of the gas is 21 L.

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3 years ago

A solution is made by dissolving 9.74 g of sodium sulfate in water to a final volume of 165 mL of solution. What is the weight/w

MatroZZZ [7]

Answer: The weight/weight % or percent by mass of the solute is 5.41 %.

Explanation:

Mass of the sodium sulfate,w = 9.74 g

Volume of the water = 165 mL

Density of the water = 1 g/mL

$Density=1 g/mL=\frac{\text{Mass of water}}{\text{Volume of water}}$

Mass of the water = $1 g/mL\times 165 mL=165 g$

Mass of the solution, W:

Mass of solute + Mass of solvent =9.47 g + 165 g=174.47 g

$w/w\%=\frac{w\times 100}{W}=\frac{9.45 g\times 100}{174.47 g}=5.41 \%$

The weight/weight % or percent by mass of the solute is 5.41 %.

8 0

3 years ago

In a sample of liquid water (H2O), which property differs among the water molecules?

garik1379 [7]

In a sample liquid water, a property that differs among the water molecules is its own orientation and space. The explanation of the answer to the question is because the number of the oxygen and hydrogen atoms and the hydrogen and atoms’ arrangement will never change and will always be the same for each of the water molecule. The strength of the bond of it also does not change and stays the same.

3 0

3 years ago

The table compares some characteristics of two atoms.

Mademuasel [1]

Answer:

Explanation:

Atom X,

Neutron num = 4, Mass num = 7

Therefore, proton number = Mass num - Neutron num

= 7 - 4

= 3

Atom Y,

Neutron num = 5, Mass num = 9

Therefore, proton number = Mass num - Neutron num

= 9 - 5

= 4

1) False. Atom X belongs to group 3 while atom Y belongs to group 4

2) False. Atom X is in a column on the left of Atom Y

3) True. Atom X and atom Y belong to the same period two on the periodic table

4) Fasle. Atom X and Y are not isotopes because they do not have the same atomic number.

Isotopy is a phenomenon whereby atom of same element have same atomic number but different mass number

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3 years ago

Neither n2 nor o2 are greenhouse gases because

Katyanochek1 [597]

Neither N₂ or O₂ are greenhouses gases because they do not cause the greenhouse effect.

<h3>What are greenhouses gases?</h3>

Greenhouse gases trap heat in the atmosphere causing the temperature of the planet to rise.

Greenhouse gases cause the greenhouse effect.

<h3>What is the greenhouse effect?</h3>

The greenhouse effect is the warming up of the planet due to greenhouse gases.

Greenhouse gases include

carbondioxide
methane
nitrous oxide and
water vapour

So, neither N₂ or O₂ are greenhouses gases because they do not cause the greenhouse effect.

Learn more about greenhouse gases here:

brainly.com/question/2531992

#SPJ12

7 0

2 years ago