ATI TEAS 7
Chemistry
1. Which of the following is a weak acid commonly found in citrus fruits?
- A. Sulfuric acid (Hâ‚‚SOâ‚„)
- B. Hydrochloric acid (HCl)
- C. Citric acid
- D. Nitric acid (HNO₃)
Correct answer: c
Rationale: Citric acid is a weak acid commonly found in citrus fruits. The other choices are strong acids.
2. The statement, “The Good Shepherd Medical Center aims to provide patient-centered care in
- A. Vision
- B. Goal
- C. Philosophy
- D. Mission
Correct answer: A
Rationale: The correct answer is A: "Vision." A vision statement describes the desired future state or long-term goal of an organization. It outlines the aspirations and purpose of the organization, such as providing patient-centered care in this case. Vision statements are forward-looking and inspirational, guiding the organization towards achieving its ultimate objectives. In contrast, a goal is a specific, measurable, and achievable target within a set timeframe. A philosophy is a set of beliefs or guiding principles, while a mission statement defines the organization's core purpose and focus. Therefore, the statement about providing patient-centered care aligns with the concept of a vision statement.
3. Which sentence uses the comparative degree of an adjective correctly?
- A. This movie is good, but the other one is better.
- B. She is the tallest player on the team.
- C. He worked hardest than everyone else.
- D. My coffee is hotter than yours.
Correct answer: A
Rationale: Option A uses "better" to compare the quality of two movies.
4. A car is accelerating down a hill. Which of the following forces is NOT acting on the car?
- A. Gravitational force
- B. Normal force from the road
- C. Air resistance
- D. The car's engine force
Correct answer: B
Rationale: Normal force from the road. The normal force acts perpendicular to the surface of contact and does not contribute to the acceleration down the hill.
5. Which of the following conditions is characterized by a wasting or decrease in muscle mass?
- A. Hypertrophy
- B. Atrophy
- C. Spasticity
- D. Myopathy
Correct answer: B
Rationale: The correct answer is B: 'Atrophy.' Atrophy is a condition characterized by a wasting or decrease in muscle mass. Hypertrophy (choice A) refers to an increase in muscle size, not a decrease. Spasticity (choice C) is increased muscle tone and reflexes, while myopathy (choice D) is a general term for diseases of the muscle tissue. Understanding these definitions is crucial for distinguishing between different muscle conditions.
6. Reactions requiring light energy to proceed are classified as:
- A. Combustion reactions
- B. Endothermic reactions
- C. Photochemical reactions
- D. Double displacement reactions
Correct answer: C
Rationale: The correct answer is C: "Photochemical reactions." Photochemical reactions are a type of chemical reaction that requires light energy to proceed. During a photochemical reaction, light energy is absorbed by a substance, leading to changes in its chemical structure or properties. This process is different from combustion reactions (A), which involve the rapid combination of a fuel with oxygen to release heat and light energy. Endothermic reactions (B) absorb heat energy, not light energy, to proceed. Double displacement reactions (D) involve the exchange of ions between reactants, but do not specifically require light energy to occur. Therefore, the most appropriate classification for reactions requiring light energy is photochemical reactions.
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