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Setler [38]
3 years ago
11

What are green boxes on periodic tables

Chemistry
1 answer:
finlep [7]3 years ago
3 0

Answer:

The basic metal ones?

Explanation:

...

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How many moles of gas are contained in a rigid, sealed, 5 L container, at 1 atm of pressure and 22 oc?
Ugo [173]
The ideal gas law is: PV=nRT
Pressure
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n= moles
R= gas constant
Temperature in Kelvin
(Degrees in celsius +273)
n= PV/RT
(1.00atm)(5.00L)/(.08026)(295K)= .207mol of gas
7 0
4 years ago
Which of these shows a volume of 255 mililiters expressed in liters
-Dominant- [34]
The 1000 to I think that maybe
6 0
2 years ago
Which of the following descriptions properly describes the electrons?
gladu [14]

Answer:

Which following? If you could please be more specific I would gladely love to answer your question. (:

5 0
3 years ago
Read 2 more answers
A sample of gas occupies a volume of 67.5 mL . As it expands, it does 131.0 J of work on its surroundings at a constant pressure
baherus [9]

Answer:

The final volume V2=1.3175L

Explanation:

between work ( w), pressure ( P ) and volume ( V ) is the following:

w=−PΔV

where,

ΔV=V2−V1

It was stated that the gas is expanding, then the work is done by the system and it is of a negative value .

Note that work, should be expressed in 1L⋅atm=101.3J

CHECK THE ATTACHMENT FOR DETAILED EXPLATION

4 0
4 years ago
Which unit conversion allows you to convert 21.0 gallons into milliliters?
Romashka-Z-Leto [24]

79470.2mL

Explanation:

Given:

  Volume = 21gallons

  problem, convert to milliliters;

   

  gallons to milliliters

 1 liter = 1.057 quarts

1 gallon = 4 quarts

we can simply solve this by establishing and using a conversion factor of 1 ;

     

   1 gallon = 4 quarts

   1.057 quarts = 1 liter

   0.001L = 1mL

21gallons x \frac{4qt}{1gal} x \frac{1 liter}{1.057qt} x \frac{1mL }{0.001L}  = 79470.2mL

we say;

From; \frac{4qt}{1gal} x \frac{1 liter}{1.057qt} x \frac{1mL }{0.001L}

1gallon = 3784.2mL

learn more:

conversion brainly.com/question/1548911

#learnwithBrainly

8 0
3 years ago
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