Nitrogen gas is an extremely stable molecule because its structure contains which of the following?

A. Resonance bonds

B. Ionic bonds

C. Triple covalent bonds

D. Hydrogen bonds

Answer Explanation:

The Lewis structure of nitrogen gas is shown below. Triple bonds are stronger than double or single bonds. Therefore, we can infer that the triple bond between the two nitrogen atoms makes nitrogen gas more stable.

Therefore, the Correct Answer is C.

Q #1: Which of the following processes causes most of the carbon dioxide from the blood to move into the alveoli?

A. Diffusion down a concentration gradient

B. Conversion of carbon monoxide

C. Passive transport using carrier proteins

D. Active transport using energy

Answer Explanation

Carbon dioxide moves from the blood to the alveoli through the process of diffusion. The blood has a high concentration of carbon dioxide than the alveoli.
Therefore, carbon dioxide diffuses from blood to alveoli through the cell membrane.
Q #2: Punnett squares are used by geneticists to determine the probability of different offspring genotypes. In the one shown below, what letter(s) belong in the lower right box?

A. AA

B. Aa

C. aA

D. aa

Answer Explanation

From the given Punnett square, we can cross the genotypes of the two parents and established the phenotypes the offspring will have. The Punnett square is filled as:

A

a

a

Aa

aa

a

Aa

aa

The requested answer is aa.
Q #3: Practice Question An atom has 14 protons and 20 neutrons. What is its atomic number?

A. 20

B. 17

C. 10

D. 14

Answer Explanation

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Nitrogen gas is an extremely stable molecule because its structure contains which of the following?

More Questions on TEAS 7 Science

Q #1: Which of the following processes causes most of the carbon dioxide from the blood to move into the alveoli?

Answer Explanation

Q #2: Punnett squares are used by geneticists to determine the probability of different offspring genotypes. In the one shown below, what letter(s) belong in the lower right box?

Answer Explanation

Q #3: Practice Question An atom has 14 protons and 20 neutrons. What is its atomic number?

Answer Explanation

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