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adelina 88 [10]
3 years ago
6

When metals, non metals,and metallics are composed according to luster, which is best description of the appearance of metalloid

s
Chemistry
1 answer:
Nitella [24]3 years ago
5 0

Answer:

Metalloids are metallic-looking brittle solids that are either semiconductors or exist in semiconducting forms, and have amphoteric or weakly acidic oxides. Typical nonmetals have a dull, coloured or colourless appearance; are brittle when solid; are poor conductors of heat and electricity; and have acidic oxides.

Explanation:

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Fill in the [?]: 5,481 g = [?] lb. ​
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<u>Answer:</u> The molar mass of the given unknown compound is 50.5 g/mol.

<u>Explanation:</u>

To calculate the volume of water, we use the equation given by ideal gas, which is:

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where,

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M = Molar mass of unknown compound = ? g/mol

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Putting values in above equation, we get:

1.00atm\times 2.010L=\frac{2.73g}{M}\times 0.0820\text{ L atm }mol^{-1}K^{-1}\times 453K\\\\V=50.45g/mol

Rounding off to 3 significant figures, we get the molar mass to be 50.5 g/mol.

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