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3 years ago

Can a tank of oxygen gas ever be half empty? Explain

Chemistry

2 answers:

Ksivusya [100]3 years ago

5 0

Yes they can. That's why they sell refills for them

Tju [1.3M]3 years ago

5 0

Yes, they can be half empty. Oxygen canister's contain different types of oxygen some are very pure. They are filled at very high pressures.

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Write the overall balanced equation for the reaction of magnesium and hcl to form hydrogen gas

miv72 [106K]

The balanced equation:
Mg+2HCl⇒ MgCl₂+H₂

4 0

3 years ago

How many grams of NaCL are required to prepare 50ml of a 2.0 molar solution

Ksivusya [100]

Answer:

5.85 gm.

Explanation:

We know that,

Normality = Molarity × Molecular weight

Equivalent weight

Since molecular weight of NaCl= equivalent weight = 23+35.5 =58.5

Normality of NaCl= molarity=2

Now,

Normality= weight in gram ×1000

Volume ×equivalent weight

Weight in gram is given by,

=Normality × Volume × equivalent weight

1000

= 2× 50 × 58.5

1000

=5.85 gm.

4 0

3 years ago

Why does a group of warmer atoms take up more volume than a group of cooler atoms ?

const2013 [10]

Warmer atoms expand. There is also more movement. This is also explained when putting it into terms with solid vs. gas. in a solid, the atoms vibrate, but they can't move very far because there is not a lot of space between them. In a gas, on the other hand, the atoms are spread apart, and they move very fast. Putting it into context with water, the steam (gas) version is hot, and the ice cube (solid) version is cold.

7 0

3 years ago

Read 2 more answers

Jesse was mowing a large property in Mansfield. He measured it out and found that it took him 40 seconds to mow from one end of

iragen [17]

Answer:

2,400 meters

Explanation:

40 x 60 = 2,400

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2 years ago

How many neutrons are in Uranium-242?

qaws [65]

There are 150 neutrons in Uranium-242

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3 years ago