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Vsevolod [243]
3 years ago
9

Which term refers to a variable that isn’t allowed to change during an experiment?

Chemistry
1 answer:
Citrus2011 [14]3 years ago
6 0
D) dependent variable
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A shape with five sides is called a?
Elden [556K]

Answer:

A five-sided shape is called a pentagon.

Explanation:

Answered by NONE other than the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!!!

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8 0
3 years ago
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Which gas would diffuse rapidly at the same temperature and pressure UF6 or CL2
svetoff [14.1K]

Answer:

UF6

Explanation:

6 0
3 years ago
What is the actual amount of phosphorous in a fertilizer with a npk ratio of 15-15-20?
OLga [1]
<span>NPK ratio system is a conventional shorthand for the ratio of the nitrogen N), phosphorus (P) and potassium (K) in a fertilizer. It actually shows amount of P</span>₂O₅.
If we use 100 kg of P₂O₅:
m(P₂O₅) = 0,15 · 100 kg.
m(P₂O₅) = 15 kg.
m(P₂O₅) : M(P₂O₅) = m(P) : 2M(P).
15 kg : 142 = m(P) : 62.
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3 0
3 years ago
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(e)
mariarad [96]

Answer:

3.82 × 10 ^-23 g

Explanation:

6.02 x 10^23atoms = 1 mole of sodium

1 atom = 1/(6.02 x 10^23) mole

mass = mole × molar mass

= 1/(6.02 x 10^23) × 23

= 3.82 × 10 ^-23 g

8 0
3 years ago
A container has a volume of 5.43 L and a pressure of 7.97 atm. If the pressure changes to 2.32
Novosadov [1.4K]
<h3>Answer:</h3>

18.65 L

<h3>Explanation:</h3>

We are given;

  • Initial volume of the container, V1 as 5.43 L
  • Initial pressure of the container, P1 as 7.97 atm
  • New pressure, P2 is 2.32 atm

We are required to calculate the container's new volume;

We are going to use Boyle's law

  • According to Boyle's law the volume of a fixed mass of a gas and the pressure are inversely proportional at a constant absolute temperature.
  • That is; P\alpha \frac{1}{V}
  • At varying pressure and volume at constant temperature, k is the constant.
  • Therefore; P1V1=P2V2

Rearranging the formula;

V2=\frac{P1V1}{P2}

V2=\frac{(7.97atm)(5.43L)}{2.32atm}

V2=18.654

Therefore, the new volume will be 18.65 L

3 0
3 years ago
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