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

A. lonic bonds

B. Triple covalent bonds

C. Resonance bonds

D. Hydrogen bonds

Answer Explanation:

Triple covalent bonds. Nitrogen gas consists of two nitrogen atoms that share three pairs of electrons, forming a triple bond. This bond is very strong and requires a lot of energy to break. Ionic bonds, resonance bonds, and hydrogen bonds are weaker types of bonds that do not occur in nitrogen gas.

Therefore, the Correct Answer is B.

Q #1: Which of the following can lead to a tsunami?

A. Lightning strikes

B. Flooding

C. Earthquakes

D. Sunspot activity

Answer Explanation

A tsunami is a series of large waves that are caused by the displacement of a large volume of water in the ocean or a large lake. The most common cause of tsunamis is earthquakes, which can generate seismic waves that travel through the water and create sudden changes in water level.
Q #2: In a plant in which fuzzy leaves (F) are dominant over smooth leaves (f), which of the following crosses will produce only offspring with smooth leaves?

A. ffx ff

B. Ffx Ff-

C. Ff x ff

D. FFX FF

Answer Explanation

To produce only offspring with smooth leaves, the parents must both have two copies of the recessive allele (f) for this trait.
Q #3: Which of the following chemicals is released by one type of immune cell to directly activate another type of immune cell?

A. Lysozymes

B. Perforin

C. Cytokines

D. Granzymes

Answer Explanation

Cytokines are small proteins that act as chemical messengers between different types of immune cells. They can stimulate or inhibit the activation, proliferation, differentiation, and migration of immune cells. For example, interleukins are a type of cytokine that is produced by one type of white blood cell and can affect the behavior of another type of white blood cell. Lysozymes, perforin, and granzymes are all molecules that are involved in killing pathogens or infected cells, but they do not directly activate other immune cells.

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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 can lead to a tsunami?

Answer Explanation

Q #2: In a plant in which fuzzy leaves (F) are dominant over smooth leaves (f), which of the following crosses will produce only offspring with smooth leaves?

Answer Explanation

Q #3: Which of the following chemicals is released by one type of immune cell to directly activate another type of immune cell?

Answer Explanation

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