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Fiesta28 [93]
2 years ago
10

First to help me with these 4 gets brainless HURRYTTT UPPPPP

Chemistry
2 answers:
Bezzdna [24]2 years ago
6 0

Answer: It's A

Explanation:

kompoz [17]2 years ago
3 0

Answer:

A

Explanation:

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Who developed the concept that the total pressure of a mixture of gases is the sum of their partial pressures?.
victus00 [196]

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John Dalton

Explanation:

John Dalton developed the concept tittle: Dalton Law of Partial Pressure.

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1 year ago
I really need help with this I would really appreciate it​
gulaghasi [49]
PV=nRT will give you the answer I think. I haven’t worked with a certain unit in that problem
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3 years ago
If electromagnetic radiation has a frequency of 2.0×1015s−1, what is the radiation’s energy?(1 point)
Alika [10]
  • Frequency=v=2×10^15Hz
  • Energy=E

Using planks quantum theory

\\ \sf\longmapsto E=hv

\\ \sf\longmapsto E=6.626\times 10^{-34}Js\times 2\times 10^{15}s^{-1}

\\ \sf\longmapsto E=13.252\times 10^{-19}J

\\ \sf\longmapsto E=1.3\times 10^{-18}J

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3 years ago
How can a flame test identify an unknown element?
Ilya [14]

Answer:

the answer for this question is the option D

6 0
3 years ago
Match the image with the correct invention
PolarNik [594]

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These are the correct answers.

Have A good day!!  :)

8 0
3 years ago
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