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3 years ago

14

Look at the diagram below, which shows an atom of an element. How many valence electrons does it have? Based on this, would the

atom be reactive or unreactive?

1 answer:

Cloud [144]3 years ago

4 0

Answer:

unreactive

Explanation:

because look at the picture the picture will show you easily

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When 10 g of diethyl ether is converted to vapor at its boiling point, about how much heat is absorbed? (c4h10o, δhvap = 15.7 kj

vagabundo [1.1K]

Answer:

ΔH= 3KJ

Explanation:

The total heat absorbed is the total energy in the process, and that is in form of entalpy.

ΔH = q + ΔHvap, where q is the heat necessary for elevate the temperature of dietil ether. Suppose the initial temperature is room temperature (25ºC=298 K), then

q= 10g x2.261 J/gK x(310 K - 298K)= 271.32 J= 0.3 kJ

Then

ΔHvap = 10g C4H10O x (1 mol C4H10O/74.12 g C4H10O) x( 15.7 KJ/ 1 mol C4H10O) = 2.12 KJ

ΔH= 2.5KJ ≈ 3KJ

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3 years ago

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marusya05 [52]

I think its the brain or muscles... sorry if im wrong .

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3 years ago

How much mass do 2.0 moles of uranium contain

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3 years ago

A balloon is floating around outside your window. The temperature outside is 21 ∘C , and the air pressure is 0.700 atm . Your ne

Andreyy89

Answer:

$V=162L$

Explanation:

Hello,

In this case, we can compute the required volume by using the ideal gas equation as shown below:

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Thus, solving for the volume and considering absolute temperature (in Kelvins), we obtain:

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Atomic radius of bromine

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