The two jovian planets that contain the highest proportions of hydrogen compounds are ___________.

1 answer:

7 0

Jupiter and Saturn The Jovian planets are Jupiter, Saturn, Neptune, and Uranus. Percent hydrogen by volume: jupiter: 89.8% saturn: 96.3% neptune: 80% uranus: 83%

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An air mass usually forms in an area of _____. low pressure because it's stable low pressure because it's unstable high pressure

horsena [70]

Answer: high pressure because it's stable

Explanation:

Air mass is volume of air which has stable temperature, humidity and pressure horizontally. Over time, each air mass acquires properties of the region by residing over same part of a surface.

Areas of low pressure and high pressure occur where there is warm air and cold air respectively. An air mass usually forms over an area of high pressure. Warm air rises up and cold air takes its place. Warm air has low density and low pressure where as cold air has high density and pressure and therefore, sinks to the bottom. This is a stable condition. The movement of air mass is responsible for maintenance of temperature conditions on Earth.

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Dafna1 [17]

Answer:

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Explanation:

I believe to be increased ,because the coal is a natural resource to be used.

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Serga [27]

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What does sodium react with

Pani-rosa [81]

Sodium reacts with water to form a colorless solution of sodium hydroxide and hydrogen gas.

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A sample of water at 100°C is converted to steam after absorbing 820 kJ of heat. How grams of H2O are contained in the sample? A

Varvara68 [4.7K]

Since water is already at 100°C all the energy is used to evaporate it.
Now we can calculate how many mols of water are evaporated with 820kJ.
$N= \frac{820}{41} =20 mol$
We calculated that we got 20 mols of water evaporated. Now, all we have to do is find how many grams is a mol of water. Molar mass of water is 20.16 g/mol.
The final answer is:
$m=20*20.16=403.2g$

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3 years ago