ATI TEAS 7
Chemistry
1. What is the common name for the compound CH₃COOH?
- A. Acetic acid
- B. Formic acid
- C. Butyric acid
- D. Propionic acid
Correct answer: A
Rationale: CH₃COOH is commonly known as acetic acid. The other choices represent different organic acids.
2. Square: A garden bed has a side length of 8 meters. What is its perimeter?
- A. 16m
- B. 24m
- C. 32m
- D. 64m
Correct answer: D
Rationale: Since all sides are equal, multiply the side length by 4: perimeter = 4 * side length = 4 * 8m = 32m.
3. Which vitamin is essential for proper absorption of calcium and plays a role in lung function?
- A. Vitamin A
- B. Vitamin B12
- C. Vitamin D
- D. Vitamin E
Correct answer: C
Rationale: The correct answer is C, Vitamin D. Vitamin D is essential for the proper absorption of calcium in the intestines, which is crucial for maintaining strong bones and teeth. Additionally, Vitamin D plays a role in lung function by supporting respiratory health and reducing inflammation in the lungs. Vitamin A is important for vision and immune function, Vitamin B12 is necessary for red blood cell formation and neurological function, and Vitamin E is an antioxidant that helps protect cells from damage.
4. What happens to the work done on an object when the angle between force and displacement is 90 degrees?
- A. Maximum work is done
- B. No work is done
- C. Minimum work is done
- D. Work is infinite
Correct answer: b
Rationale: When the angle between force and displacement is 90 degrees, the work done on the object is zero.
5. A bag contains 5 red marbles and 7 blue marbles. If you draw a marble without looking, what is the probability it will be red?
- A. 1/4
- B. 1/3
- C. 1/2
- D. 2/3
Correct answer: A
Rationale: Divide the number of red marbles (5) by the total number of marbles (12) to get 1/3 probability.
6. Which sentence avoids a comma splice?
- A. The wind howled, the branches swayed, and rain lashed against the windows.
- B. He packed his bags, he checked the weather forecast, and then hit the road.
- C. The movie was entertaining, it was also thought-provoking.
- D. Tired and hungry, she stopped for a quick bite at the cafe.
Correct answer: C
Rationale: Option C uses a semicolon to separate two independent clauses, avoiding a comma splice.
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