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Nursing Elites

ATI TEAS 7

Chemistry

1. The process of a gas changing directly into a solid is called:

Correct answer: B

Rationale: This process, also known as sublimation, involves gas particles losing energy and transitioning directly into the solid state.

2. The term "magic number" in nuclear physics refers to specific numbers of protons or neutrons that contribute to:

Correct answer: C

Rationale: The term "magic number" in nuclear physics refers to specific numbers of protons or neutrons that result in exceptional stability of the nucleus. When the number of protons or neutrons in a nucleus align with a magic number, the nucleus is more stable and less likely to undergo spontaneous radioactive decay. This stability is due to the arrangement of nucleons within the nucleus, leading to lower energy states and increased binding energy. Magic numbers play a crucial role in determining the overall stability and behavior of atomic nuclei. Therefore, the correct answer is C: "Exceptional stability of the nucleus."

3. The gland located on top of the kidneys responsible for regulating blood pressure and electrolyte balance is the:

Correct answer: D

Rationale: The correct answer is C: Adrenal gland. The adrenal glands are located on top of the kidneys and play a crucial role in regulating blood pressure and electrolyte balance by secreting hormones such as aldosterone and cortisol. The thyroid gland (A) regulates metabolism, the pituitary gland (B) controls other endocrine glands, and the parathyroid gland (D) regulates calcium levels in the blood. Therefore, the adrenal gland is specifically responsible for the functions mentioned in the question, making it the correct choice.

4. What property of matter refers to the amount of space occupied by an object?

Correct answer: b

Rationale: Volume measures the amount of space occupied by an object.

5. Which sentence uses the comparative degree of an adjective correctly?

Correct answer: A

Rationale: Option A uses "better" to compare the quality of two movies.

6. A doctor prescribes 150 milligrams of medication to be taken orally every 12 hours. How many grams should the patient take per dose?

Correct answer: A

Rationale: 1 gram is equal to 1000 milligrams. Divide the dosage in milligrams (150 mg) by the conversion factor (1000 mg/gram) to find the dosage in grams: 150 mg / 1000 mg/gram = 0.15 grams.

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