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blondinia [14]
3 years ago
13

5. Which part makes up most of our blood vessels?

Chemistry
2 answers:
Murrr4er [49]3 years ago
8 0

Answer: a  capillaries

Explanation:

givi [52]3 years ago
3 0
A. The Capillaries............
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A sample of gas occupies 17 mL at -122°C. What volume does the sample occupy at 70°C?
aev [14]

Answer: 38.6 ml

Explanation:

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.


V\propto T    (At constant pressure and number of moles)

\frac{V_1}{T_1}=\frac{V_2}{T_2}

V_1= initial volume = 17 ml

V_2= final volume = ?

T_1= initial temperature =-122^0C=273+(-122)=151K

T_2=final temperature=70^0C= 70+273=343K

\frac{17}{151}=\frac{V_2}{343}

V_2=38.6ml

Thus final volume is 38.6 ml at 70^0C




7 0
3 years ago
What do you think are the necessary skills needed by scientists to solve a particular problem?
neonofarm [45]

Answer:

The skills required to solve problems are known as analytical skills. You use analytical skills when detecting patterns, brainstorming, observing, interpreting data, integrating new information, theorizing, and making decisions based on the multiple factors and options available.

Explanation:

8 0
3 years ago
Which form of oxygen (solid,liquid or gas) would have the highest temperature
ElenaW [278]

Answer:

drip drip water splash (gas)

Explanation:

8 0
3 years ago
Which represents the self ionization of water at 25 degrees
gayaneshka [121]
This question comes with four answer choices:

<span>A. H2O + H2O ⇄ 2H2 + O2

B. H2O + H2O⇄  H2O2 + H2

C. H2O + H2O ⇄ 4H+ + 2O2-

D. H2O + H2O ⇄  H3O+ + OH-

Answer: option </span><span>D. H2O + H2O ⇄  H3O+ + OH-

(the +sign next to H3O is a superscript, as well as the - sing next to OH)

Explanation:

The self-ionization of water, or autodissociation, produces the two ions H3O(+) and OH(-). The presence of ions is what explain the electrical conductivity of pure water.

</span><span>In this, one molecule of H2O loses a proton (H+) (deprotonates) to become a hydroxide ion, OH−. Then, he <span>hydrogen ion, H+</span>, immediately protonates another water molecule to form hydronium, H3O+.
</span>
7 0
3 years ago
Monochlorination of propane yields two constitutional isomers, and dichlorination yields four. Trichlorination yields five const
GaryK [48]
By Tri chlorination, three chlorine atoms can replace the 3 hydrogen atoms in propane molecule to give tri-chlorinated products according to the attached picture.

6 0
3 years ago
Read 2 more answers
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