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Softa [21]
3 years ago
9

Why are there so many capillaries in the lungs?

Chemistry
1 answer:
AysviL [449]3 years ago
6 0
There's a lot of capillaries in the lungs because the blood needs to be transferred and the capillaries are the smallest vessels that can do this.
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A fire that is burning wood will release water vapor and carbon dioxide<br> true or false?
Triss [41]

Answer:

true.

Explanation:

6 0
3 years ago
Which two of the four quantum numbers determine the energy level of an orbital in a multielectron atom? Which two of the four qu
Roman55 [17]

Answer:

The correct answer is - n and l.

Explanation:

The size of an orbital is determined by the principal number of shell which is represented by n. The larger the energy level (n) bigger the size of the orbital. N can be any integer value: 1, 2, 3 . . . . and so on.

l represents the angular momentum or subshell number provides the overall shape of an orbital in this subshell only integer values between 0 and n-1 are permitted.

Thus, n & l are two quantum numbers that determine the energy level of an orbital in a multielectron atom.

5 0
3 years ago
Why does naphthol react with sodium hydroxide? why does ethanol not react to the extent that naphthol does with sodium hydroxide
igomit [66]

Answer:

Conjugate base of naphthol is highly stable but conjugate base of ethanol is unstable.

Explanation:

Naphthol gives acid base reaction with NaOH where naphthol acts as an acid and NaOH as a base.

Reactivity of naphthol towards NaOH is quite high because the conjugate base of naphthol is highly stable. Stability of the conjugate base arises due to delocalization of negative charge on oxygen atom into aromatic naphthalene ring.

Ethanol is not so reactive towards NaOH because the ethoxide ion is highly unstable due to lack of delocalization of negative charge on oxygen atom.

Resonance structures of conjugate base of naphthol has been shown below.

6 0
3 years ago
What is another word for gas in science
Lina20 [59]

Answer:

Flatulence

Explanation:

In science, scientists often refer to gas as flatulence.

5 0
2 years ago
Read 2 more answers
Bond energy is the greatest for?​. a: Ch4 b: O2 c: N2 d: Cl2
wariber [46]

It's answer is c. N2

The maximum bond energy is of N2 because N2 molecule is formed by 3 covalent bonds and O2 molecule is formed by 2 covalent bonds.

Hope it helps :)

7 0
3 years ago
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