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Nursing Elites

ATI TEAS 7

Chemistry

1. What is the coefficient of oxygen in the balanced chemical equation for the combustion of methane (CH4)?

Correct answer: b

Rationale: The balanced equation is CH4 + 2O2 → CO2 + 2H2O, so the coefficient of oxygen is 2.

2. Which phrase best describes the tone of the following sentence: "He slammed his fist on the table, his voice booming with anger."

Correct answer: C

Rationale: The verbs and descriptive language convey strong emotions and agitation.

3. Which preposition best completes the sentence: "She borrowed money _____ her friend."

Correct answer: B

Rationale: "From" indicates the source of the borrowed money.

4. What does the term "colligative property" refer to in solutions?

Correct answer: b

Rationale: Colligative properties are dependent on the number of solute particles in a solution, not their nature. The other choices do not accurately define colligative properties.

5. A closed system in ecology is one that:

Correct answer: A

Rationale: Rationale: In ecology, a closed system is one that does not exchange matter with its surroundings but can exchange energy. This means that while energy can enter or leave the system, the amount of matter within the system remains constant. This definition aligns with option A, making it the correct answer. Options B and C are incorrect because a closed system does not exchange matter, and option D is not directly related to the definition of a closed system in ecology.

6. What is the process of cells becoming specialized to perform specific functions called?

Correct answer: B

Rationale: Rationale: A) Cell division refers to the process by which a parent cell divides into two or more daughter cells. B) Cell differentiation is the process by which cells become specialized to perform specific functions. During differentiation, cells acquire specific structures and functions that allow them to carry out particular roles in the body. C) Cell growth is the process by which cells increase in size and number. D) Cell regeneration is the process by which new cells are produced to replace damaged or lost cells in an organism. In this context, the process of cells becoming specialized to perform specific functions is best described as cell differentiation.

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