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r-ruslan [8.4K]
3 years ago
12

Which weather tools are designed specifically to travel high up in the atmosphere?

Chemistry
2 answers:
Andrej [43]3 years ago
8 0
I think the correct answer is C and D. I hope this helps!
Readme [11.4K]3 years ago
5 0
D. Weather Balloons
Good luck
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C3H2 + 502 + 3 CO2 + 4H20
nordsb [41]

Answer: 6.2 moles

Explanation:

C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(g)

The balanced equation above shows the combustion of propane, C3H8 in oxygen, O2 to yield carbon dioxide, CO2 and water, H2O

The mole ratio of combustion are as follows:

1 mole of C3H8 react to produce 4 moles of H2O

1.55 mole of C3H8 will react to produce Z moles of H2O

To get the value of Z, cross multiply

Z x 1 mole = 1.55 mole x 4 mole

Z = 6.2 moles

Thus, 6.2 moles of water will be produced from 1.55 moles of propane

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4 years ago
Which of the following is a density-independent factor?
Readme [11.4K]
C.) Natural Disaster is Independent of that!

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7 0
3 years ago
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What is the OH- concentration of a solution whose pH is 12.40?
Elanso [62]
PH + pOH = pKw = 14

12.40 + pOH = 14

pOH = 14 - 12.40

pOH = 1.6

[OH⁻] = 10 ^{-pOH}

[OH⁻] = 10 ^{-1.6}

[OH⁻] = 2.5x10⁻² M

hope this helps!
7 0
3 years ago
I don’t get it someone help me with this asap
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I don’t understand what this is saying but it says there are no correct answers
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4 years ago
Use Newton’s first law of motion to explain why the coin falls into the cup if you remove the card quickly.
g100num [7]
Gravity pulls it down into the cup
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