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JulsSmile [24]
3 years ago
10

24 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!

Chemistry
2 answers:
erastovalidia [21]3 years ago
6 0
I'd say b, but i'm not 100 percent sure.<span />
Oksana_A [137]3 years ago
6 0
I would say D, because it did not say you are just starting the flight. If it did, then it would be B, because you need to speed up and you are going upwards. It said you are going in the same amount of speed, and of course, if you are going in the same speed, you can't make time pass faster or slower. So, if it was me, I would choose D as an answer.

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The balloon Spirit of Freedom, flown around the world by American Steve Fossett in 2002, contained 550,000 cubic feet of helium.
Elodia [21]
Assuming the balloon initially has volume of 0 when deflated, the total P(deltaV) = (1.00 atm)(550,000 ft^3) = 550,000 atm-ft^3. To convert into work units, we can first convert ft^3 to L:
(550,000 atm-ft^3)(1 m/3.28 ft)^3
= (15,586.2 atm-m^3)
Then we convert to L:
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3 0
3 years ago
Consider the reaction between ozone and a metal cation, m2+, to form the metal oxide, mo2, and dioxygen: o3 + m2+(aq) + h2o(l) →
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5 0
4 years ago
Read 2 more answers
Measurements include
Keith_Richards [23]
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8 0
3 years ago
Calculate the ph of sweater which has a hydrogen ion concentration of 1 times 10 to the power of 8
telo118 [61]

Answer:

The pH of the sweater containing Hydrogen ion concentration

[H^{+}]=1\times 10^{-8} is

<u>8</u>

<u></u>

Explanation:

pH = It is the negative logarithm of activity (concentration) of hydrogen ions.

pH = -log([H+])

Now, In the question the concentration of [H+] ions is :

[H^{+}]=1\times 10^{-8}

pH = -log(1\times 10^{-8})

use the relation:

log(10^{-a})=a

pH= -(-8)

pH = 8

Note : <em><u> 1 times 10 to the power of 8 must be" 1 times 10 to the power of -8"</u></em>

If the concentration is

[H^{+}]=1\times 10^{8}

Then pH = -8 , which is not possible . So in that  case the pH calculation is by other method

5 0
3 years ago
Which carboxylic acid has the lowest boiling point?
erik [133]
Methanoic acid :33333
7 0
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