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forsale [732]
3 years ago
11

Will mark brainliest

Chemistry
1 answer:
andre [41]3 years ago
4 0
The answer it the 3 one I hope this helps
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A balloon is filled with 500mL of helium at a temp of 27C and 75mmHg. What volume in mL will it have when it reaches an altitude
pickupchik [31]

Answer:

The answer to your question is: V = 60.3 ml

Explanation:

Data

V1 = 500 ml

T1 = 27°C = 300°K

P1 = 75 mmHg = 0.098 atm

V2 = ?

T2 = - 33°C = 240°K

P2 = 0.65 atm

Formula

                            \frac{P1V1}{T1}  = \frac{P2V2}{T2}

                            V2 = \frac{P1V1T2}{T1P2}

                            V2 = \frac{(0.098)(500)(240)}{(300)(0.65)} \

                            V2 = \frac{11769}{195}

                            V2 = 60.3 ml                        

5 0
3 years ago
Explain why pure water has a very slight electrical conductivity.
Pepsi [2]
For electricity to flow there must be a flow of electrons or ions present in a system or medium. When electricity is passed in pure water, oxygen does not have d-orbitals or f-orbitals through which electrons may pass. In pure water there are no electrolytic substance, so no ions present in the pure water. Therefore electricity can not pass through pure water. Additionally; water cannot dissociate into OH- and H+ when electricity is passed through pure water.
7 0
4 years ago
To survive and advance, humans have used the natural resources in their environment for at least as long as recorded history.
Otrada [13]

Answer:

water, as there is 0.01% of itis left, mainly from polar caps, potable water is present, if it is not used carefully, then there will be no potable water for us to drink

Explanation:

3 0
4 years ago
Tổng số hạt e, p, n của nguyên tử M là 40, số hạt mang điện hơn số hạt không mang điện
hodyreva [135]

Answer:

huh I can't understand

Explanation:

what are your language bro

8 0
3 years ago
What type of decay process is demonstrated in the following reaction 40 -19K to 0 -1e+40-20Ca?
Dmitry_Shevchenko [17]
The decay process that is demonstrated by the equation above would be a beta decay. This type of radioactive decay involves the emission of a beta particle. It happens when one of the protons is transformed in the other. The beta particle here is represented by <span>0 -1e.</span>
3 0
3 years ago
Read 2 more answers
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