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Varvara68 [4.7K]
3 years ago
15

The highly reactive elements in group 7A are known for forming salts. What are they called? transition metals metalloids halogen

s noble gases
Chemistry
1 answer:
liberstina [14]3 years ago
4 0
The group 7A elements are called Halogens. 

Please mark as brainliest if this helped! :)
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How many moles of N2 are need to fill a 35 L tank at standard temperature and pressure?
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1.56 moles of N2 are needed to fill a 35 L tank at standard temperature and pressure. Details about moles can be found below.

<h3>How to calculate number of moles?</h3>

The number of moles of a substance can be calculated using the following formula:

PV = nRT

Where;

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Therefore, 1.56 moles of N2 are needed to fill a 35 L tank at standard temperature and pressure.

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