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 glands synthesizes antidiuretic hormone?

A. Pancreas

B. Pineal gland

C. Hypothalamus

D. Thymus

Answer Explanation

Antidiuretic hormone (ADH) is a peptide hormone that regulates the water balance in the body by increasing the reabsorption of water by the kidneys. ADH is synthesized by the hypothalamus, a part of the brain that controls many functions, such as appetite, sleep, and body temperature. ADH is then stored and released by the posterior pituitary gland, which is located at the base of the brain.
Q #2: In the following data table of an experiment carried out at 4° C (39.2° F) over 4 hours, which of the following options represents the dependent variable? Solution in bag Solution outside bag Bag mass change (g) water water   -0.2 20% sucrose   water   +2.4   40% sucrose   water   +4.3   60% sucrose   water   +5.8  

A. Duration

B. Temperature

C. Sucrose concentrations

D. Bag mass change

Answer Explanation

The dependent variable is the variable that is measured or observed in an experiment. It is the variable that changes as a result of the independent variable, which is the variable that is manipulated or controlled by the experimenter. In this case, the dependent variable is the bag mass change, because it depends on the sucrose concentrations in the bag and outside the bag. The other variables, such as duration, temperature, and sucrose concentrations, are independent variables that are set by the experimenter.
Q #3: Which of the following is the function of a totipotent cell?

A. Aids in the maturation of sex cells

B. Carries electrical impulses

C. Develops into any kind of cell

D. Fights infectious diseases

Answer Explanation

A totipotent cell is a type of stem cell that has the ability to develop into any kind of cell in the body, including the cells that make up the placenta and the umbilical cord. This means that a totipotent cell can generate a complete organism from a single cell. The only natural example of totipotent cells are the fertilized egg and the cells produced by the first few divisions of the egg. Totipotent cells are different from other types of stem cells, such as pluripotent cells, which can develop into any cell type except for the placenta and the umbilical cord, and multipotent cells, which can only develop into a limited range of cell types.

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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 glands synthesizes antidiuretic hormone?

Answer Explanation

Answer Explanation

Q #3: Which of the following is the function of a totipotent cell?

Answer Explanation

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