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jeka57 [31]
3 years ago
9

Help please help thank you

Chemistry
1 answer:
givi [52]3 years ago
3 0

Answer:

the first one

Explanation:

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1. If 22.5 L of nitrogen at 734 mm Hg are compressed to 702 mm Hg at constant
Alika [10]

Answer:

The answer to your question is   V2 = 23.52 l

Explanation:

Data

Volume 1 = V1 = 22.5 l

Pressure 1 = P1 = 734 mmHg

Volume 2 = V2 = ?

Pressure 2 = 702 mmHg

Process

To solve this problem use Boyle's law.

                      P1V1 = P2V2

-Solve for V2

                          V2 = P1V1 / P2

-Substitution

                          V2 = (734 x 22.5) / 702

-Simplification

                           V2 = 16515 / 702

-Result

                           V2 = 23.52 l

-Conclusion

If we diminish the pressure, the volume will be higher.

8 0
3 years ago
How much carbon will turn into carbon 14 every year?<br><br> Science<br> Please help asap
saw5 [17]

Answer:

There are three naturally occurring isotopes of carbon on Earth: carbon-12, which makes up 99% of all carbon on Earth; carbon-13, which makes up 1%; and carbon-14, which occurs in trace amounts, making up about 1 or 1.5 atoms per 1012 atoms of carbon in the atmosphere.

Names: carbon-14, C-14, radiocarbon

Isotope mass: 14.003241 u

Half-life: 5,730 ± 40 years

Symbol: 14C

Explanation:

Pls give me brainliest

( ^ . ^ )

5 0
3 years ago
The reaction H+ + HCO3â€"" &lt;--&gt; H2CO3 is a part of the respiration process. It takes place at _____ . A. the lungs and tis
Paladinen [302]

Answer:

The tissue cells

Explanation:

I think you mean this

H^{+}+HCO^{3} ^{-}  H_{2}CO_{3}

It all starts from Carbondioxide. This Carbondioxide is dissolved in the blood and taken by red blood cell and converted into carbonic acid. It then dissociates to form a bicarbonate ion HCO^{3} ^{-} and a hydrogen ion H^{+}

This <--> means that the whole process is reversible. It is a buffer system to maintain the pH in the blood and duodenum. And also to support proper metabolic function.

6 0
3 years ago
Read 2 more answers
Which element is used as a rat poison and is found in the title of the murder mystery?
sergejj [24]
The element that is used as a rat poison and found of the murder mystery is Arsenic.
Hope this helped you!
6 0
3 years ago
Which of the following are observations? If a person walks by, then the dog will bark. The candle floats. The tire is flat becau
Softa [21]

Answer:

hello, There!

I'll~ be ~Glad~to~help~you!

<h2>Your Question↓</h2><h3>Which of the following are observations?</h3><h2>Answer↓</h2>

❄ the candle floats, the tires are flat, and the dog is barking are observations.❄

Explanation:

↠ the three given statements are examples of observations, while the last two statements imply the concept of cause-effect relationships. ⬽

Have a great day! ⬽

Therefore, I hope this helps!

5 0
2 years ago
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