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Viktor [21]
3 years ago
7

HELPPPP!!!!

Chemistry
1 answer:
UkoKoshka [18]3 years ago
3 0
I believe it is mass? Since gravity tells the weight of something. If its wrong I apologize. But consider the rest focus more on speed.
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The circles in the model represent atmospheric layers. Make each description with the correct name of each layer.
Masja [62]

Answer:

The bottom is troposhere the next is sratoshere,mesosphere,thermosphere then exoshere

Explanation:

6 0
3 years ago
The equilibrium constant, Kp, for the following reaction is 0.497 at 500K.PCl5(g) PCl3(g) + Cl2(g)If an equilibrium mixture of t
Anestetic [448]

<u>Answer:</u> The equilibrium partial pressure of chlorine gas is 0.360 atm

<u>Explanation:</u>

For the given chemical equation:

PCl_5(g)\rightleftharpoons PCl_3(g)+Cl2(g)

The expression of K_p for above reaction follows:

K_p=\frac{p_{Cl_2}\times p_{PCl_3}}{p_{PCl_5}}

We are given:

K_p=0.497\\p_{PCl_3}=0.651atm\\p_{PCl_5}=0.471atm

Putting values in above equation, we get:

0.497=\frac{p_{Cl_2}\times 0.651}{0.471}\\\\p_{Cl_2}=0.360atm

Hence, the equilibrium partial pressure of chlorine gas is 0.360 atm

5 0
3 years ago
How many significant figures are in the measurement 40, 500 mg? a) two b) three c) four d) five
emmainna [20.7K]
I believe there are 3 significant figures B.
8 0
3 years ago
What is the shortest half life
N76 [4]

Answer:

Hey!

Your answer is element A

Explanation:

Using the graph, the element A's emission of radioactive particles ends approximately after 6 years...

A HALF-LIFE IS "HALF" OF THAT TIME PERIOD!

So if the radiation goes for 6 years the half-life is 6 divided by two which gives you 3 years!

The rest however have a longer half-life...

Because they all end at 14 yrs so their half-life in 7 years!

HOPE THIS HELPS!!

8 0
3 years ago
. The periodic table is based on an element's
mario62 [17]
The periodic table is based on an elemnt's (A) atomic number you can see this with Tellurium and Iodine.
Hope this helps :).
7 0
3 years ago
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