3 years ago

Thats wrong because i was taking a test and that was wrong its b

Chemistry

1 answer:

djyliett [7]3 years ago

6 0

What do you mean do you need hekp?

You might be interested in

A sample of nitrogen gas expands in volume from 16 L to 5.4 L at constant

xxTIMURxx [149]

a. W = 0 J

b. W = - 308.028 J

<h3>Further explanation</h3>

Given

Nitrogen gas expands in volume from 1.6 L to 5.4 L

Required

The work done

Solution

Isothermal :

W = -P . ΔV

Input the value :

a. At a vacuum, P = 0

So W = 0

b. At pressure = 0.8 atm

W = - 0.8 x ( 5.4 - 1.6)

W = -3.04 L.atm ( 1 L.atm = 101.325 J)

W = - 3.04 x 101.325

W = - 308.028 J

6 0

3 years ago

Which of the following is an example of how a scientist might use a model?

tiny-mole [99]

I am thinking it is c) A microscope is used to magnify a group of cells on a slide.

7 0

3 years ago

Which will dissolve faster in water rock salt or granulated salt

Sladkaya [172]

Answer:

Salt!!!

Explanation:

7 0

3 years ago

A scientist finds that one volume of an unknown gas X combines with two volumes of another gas Y to form two volumes of a new ga

MariettaO [177]

Answer:

Gas X

Explanation:

The given reaction can be written in the form of chemical equation as shown below as:

$X+2Y\rightarrow 2XY_2$

According to law of conservation of mass, the moles of each substance in the reaction must be equal on both reactant and product side.

Also, the question asks for the gas which is diatomic. $XY_2$ cannot be diatomic as the formula contains 3 atoms.

Between gas X and gas Y , <u>X has to be diatomic for the reaction to balance </u>as:

$X_2+2Y\rightarrow 2XY_2$

3 0

3 years ago

Please select the word from the list that best fits the definition

AveGali [126]

Answer:

I choose D option because may be it's correct

3 0

2 years ago

Read 2 more answers