2 years ago

Summary about helium

1 answer:

6 0

Answer: Helium is an type of air that can be used to inflate balloons, balls, and other things that require air. The carbon dioxide we breath out is similar to this helium.

Hope this helps!

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Tell me the main parts of the Earth Layers.

sukhopar [10]

Answer:

Crust (the surface)

Upper Mantle (dense magma)

Lower Mantle (less dense magma)

Outer Core (pure liquid material)

Inner Core (dense material)

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2 years ago

What mass of hydrogen is produced when 192 g of magnesium is reacted with hydrochloric acid?

mariarad [96]

Answer:

Mg+2HCL-Magnesium Chloride +Hygrogen

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Explanation:

N.O of moles=Mass\Molar Mass

192÷24=8

1:1

8×2=16

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Fantom [35]

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2 years ago

When Lithium-7 loses 1 electron it

IrinaK [193]

If it loses an electron, it will become an ion.

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