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Nursing Elites

ATI TEAS 7

Chemistry

1. Which of the following is an example of a salt?

Correct answer: c

Rationale: Sodium chloride is an example of a salt. The other choices are either bases or acids.

2. Based on the passage, the author's attitude towards online learning is likely to be

Correct answer: C

Rationale: The emphasis on both benefits and challenges suggests a balanced and pragmatic perspective, aligning with C.

3. What is the relationship between the wavelength (λ) and frequency (f) of a wave with a constant speed (v)?

Correct answer: A

Rationale: The relationship between wavelength (λ), frequency (f), and speed (v) of a wave is given by the formula λ = v / f. This formula is derived from the wave equation v = fλ, where v is the speed of the wave, f is the frequency, and λ is the wavelength. By rearranging the equation, we get λ = v / f, indicating that the wavelength is inversely proportional to the frequency when the speed of the wave is constant.

4. What is the name for the tiny particles that make up atoms?

Correct answer: D

Rationale: Protons, neutrons, and electrons are all subatomic particles that make up atoms.

5. Which element is used in fire extinguishers to smother flames by displacing oxygen?

Correct answer: B

Rationale: Carbon dioxide extinguishes flames by depriving them of oxygen, preventing the chemical reaction that sustains the fire.

6. What is the scientific term for a muscle that helps another muscle perform its action?

Correct answer: C

Rationale: The correct answer is C: Synergist. A synergist muscle is a muscle that assists the prime mover (agonist) in performing its action by stabilizing joints or contributing extra force to the movement. Antagonist muscles oppose the action of the prime mover, while fixator muscles stabilize the origin of the prime mover to allow efficient movement. Understanding the roles of these muscles is essential in comprehending how various muscle groups work together to produce coordinated movements.

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