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Inga [223]
3 years ago
9

I need help lol, I’ll brainlist u!

Chemistry
1 answer:
sergeinik [125]3 years ago
8 0

To make an electron jump into a higher level we basically need to provide them with the energy. This energy can be provided by heating or by striking the potassium surface with a high frequency monochromatic wave of light.

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A gas at STP occupies 16 L of space. If the pressure changes to 2.6 atm and the temperature increases to 195 degrees C, what is
Tju [1.3M]

The new volume of a gas at STP that occupies 16L of space is 27.43L.

<h3>HOW TO CALCULATE VOLUME?</h3>

The volume of a given gas can be calculated using the following expression:

P1V1/T1 = P2V2/T2

Where;

  • P1 = initial pressure
  • P2 = final pressure
  • V1 = initial volume
  • V2 = final volume
  • T1 = initial temperature
  • T2 = final temperature

1 × 16/273 = 2.6 × V2/468

16/273 = 2.6V2/468

0.0586 × 468 = 2.6V2

V2 = 27.43

Therefore, the new volume of a gas at STP that occupies 16L of space is 27.43L.

Learn more about volume at: brainly.com/question/1578538

5 0
3 years ago
Discover a good rule for making the center of the atom “stable.” What seems to make the center of the
nasty-shy [4]

Answer: Atoms that have lost or gained electrons and are now charged (different number of electrons). By putting the correct amount of protons and neutrons in the center, and you cannot have more than 2 protons/neutrons than the other if you want it to be stable. The number of protons determines the name of the element.

4 0
4 years ago
Read 2 more answers
Please work out all the problems on this page, no links, no i don't knows please do not take advantage of me or my points please
navik [9.2K]
The answer is a. Its particles move farther apart and the substance becomes a liquid.

Example: If you heat up ice it becomes water
5 0
3 years ago
Read 2 more answers
At what celsius temperature does 0.750mol of an ideal gas occupy a volume of 35.9L at 114kPa
pashok25 [27]

Answer:

378.25°C

Explanation:

Given data:

Number of moles of gas = 0.750 mol

Volume of gas = 35.9 L

Pressure of gas = 114 KPa (114/101 = 1.125 atm)

Temperature of gas = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

now we will put the values.

T = PV/nR

T = 1.125 atm × 35.9 L /0.750 mol  × 0.0821 atm.L/ mol.K

T = 40.3875/0.062/K

T = 651.4 K

Kelvin to °C:

651.4 K - 273.15 = 378.25°C

8 0
4 years ago
Is calcium soluble in water
Viktor [21]
<span>calcium is not soluble in water because it reacts to water. It does not dissolve in it.

</span>
4 0
3 years ago
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