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a_sh-v [17]
2 years ago
12

Write down the names, physical properties, and inertness of NOBLE GASES ( group no. 8)

Chemistry
1 answer:
o-na [289]2 years ago
4 0

Answer:

There's No Answer Im Sorry

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What is the formula mass of hydrated magnesium sulfate?
Masteriza [31]

Answer:

138.39 g/mol

Explanation:

Formula mass is a synonym for molar mass, which is the sum of all the masses of the elements. These can be found on a periodic table.

Because this is hydrated, the formula needs to include H2O.

MgSO4 + H2O

Mg + S + 4O + 2H + O

24.31 + 32.07 + (4*16) + (2*1.008) + 16 = about <u>138.39</u>

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What is the weight of a 30.0 kg object?<br> 3.0 N<br> 300 N<br> 6.8 N<br> 132 N
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