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3 years ago

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You have discovered an element that is a poor conductor of electricity, has a low melting point, and is a gas at room temperatur

e. How would you classify this element?
A.metal

B.metalloid

C.actinoid

D.nonmetal

1 answer:

NeX [460]3 years ago

6 0

AHHH ITS B SORRY I ACTUALLY KNOE THIS

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How many electrons are shared in a single bond?

olga nikolaevna [1]

A pair of electrons(2 electrons) are shared in a single bond.
Hope this helps you.

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ss7ja [257]

Answer:

The composition of benzene is 0.77 and the composition of toluene is 0.23

Explanation:

The Raoult´s law is:

$P=P_{A} ^{o} x_{A} +P_{B} ^{o} x_{B}$

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P = total pressure of solution benzene-toluene

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PB⁰ = vapor pressure of toluene = 28 torr

xA = mole fraction of benzene

xB = mole fraction of toluene

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The total pressure of the solution is:

$P=(95*0.5)+(28*0.5)=61.5torr$

The composition of benzene and toluene:

$Benzene=\frac{P_{A}^{o} }{P} =\frac{95*0.5}{61.5} =0.77\\Toluene=\frac{P_{B}^{o} }{P} =\frac{28*0.5}{61.5} =0.23$

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Which of the Following Correctly Balances this Equation? _H2+_Cl2 --> _HCl

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2 hydrogen and 2 chlorine on the reactant side(left of the arrow)
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H2 + Cl2 —> 2 HCl

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A. Filtration

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Answer:

true

Explanation:

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