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galina1969 [7]
4 years ago
9

Where does the actual gas exchange happen?

Chemistry
1 answer:
katen-ka-za [31]4 years ago
4 0

Answer:

Option a. is correct.

Explanation:

Gas exchange refers to the the elimination of carbon dioxide from the bloodstream to the lungs and delivery of oxygen from the lungs to the bloodstream. The actual gas exchange happens in the lungs between the alveoli and capillaries (a network of tiny blood vessels). Capillaries are located in the walls of the alveoli.

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Which term describes atoms with<br> unpaired dots in their electron dot<br> diagrams?
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Answer:

Radicals

Explanation:

A radical refers to a chemical specie that contains unpaired electrons in their dot electron diagrams.

Radicals contain an odd number of electrons. They are commonly called odd electron species.

Radicals participate in a number of important reactions. A typical example is the halogenation of alkanes in the presence of light.

Examples of radicals include; Br. , Cl. , F. etc

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3 years ago
Which two elements have chemical properties that are most similar?
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Answer:

Li and Na

Explanation:

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Why might a rubber raft burst if it is left in the sun on a summer day?
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Vladimir79 [104]

Answer:

K_2S

Explanation:

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Dinitrogen trisulfide symbol
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