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3 years ago

Which accurately describes nonmetals

Chemistry

1 answer:

Bumek [7]3 years ago

8 0

Answer:

Most nonmetals are solids, but some are gaseous or liquid. All nonmetals are solid unless they bond with a metal.

Explanation:

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60 points please help me i will appreciate it!

Setler79 [48]

Answer:

$\huge\boxed{\sf T = 682.4 \ K}$

Explanation:

Given Data:

Mole = n = 0.1 mol

Pressure = P = 530 mmHg = 0.7 atm

Volume = v = 8 L

Ideal gas constant = R = 0.8206 L atm K⁻¹ mol⁻¹

Required:

Temperature = T = ?

Formula:

Pv = nRT

Solution:

Rearranging for T

$\displaystyle T = \frac{Pv}{nR} \\\\T = \frac{(0.7)(8)}{(0.1)(0.08206)} \\\\T = \frac{5.6}{0.008206} \\\\T = 682.4 \ K\\\\\rule[225]{225}{2}$

4 0

3 years ago

I need help with #4... Chemistry is my worst subject.

pishuonlain [190]

Hope this helps!! And maybe makes you smile!! I struggle with chemistry as well (and I’m in AP chem ;) )

8 0

4 years ago

What is the molar mass of Cu(OH)2

Mice21 [21]

Answer:

97.54

Explanation:

Molar mas of cu (oh) 2

Cu = 63.54

O x 2 = 16 x 2 = 32

H x 2 = 1 x 2 = 2

TOTAL = 97.54

6 0

4 years ago

What is the mole ratio needed to determine the mass of phosphorus trifluoride produced from the reaction of 120 g of phosphorus

Vitek1552 [10]

Answer:

$\frac{4molPF_3}{1molP_4}$

Explanation:

Hello

In this case, given the reaction:

$P_4(s)+6F_2(g)\rightarrow 4PF_3(g)$

It means that since the coefficients preceding phosphorous and phosphorous trifluoride are 1 and 4, the correct mole ratio should be:

$\frac{4molPF_3}{1molP_4}$

Because given the mass of phosphorous it is convenient to convert it to moles and then cancel it out with the moles on bottom of the mole ratio.

Bes regards!

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3 years ago

What is the biome of danmarkshavn of Greenland?

earnstyle [38]

A picture. hope this helps at least a little.

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