HESI A2
Math HESI A2 Practice Test
1. How many milligrams are in 7 grams?
- A. 7000 mg
- B. 7 mg
- C. 700 mg
- D. 70 mg
Correct answer: A
Rationale: To convert grams to milligrams, you need to multiply by 1,000 since there are 1,000 milligrams in a gram. So, 1,000 x 7 grams = 7,000 mg. This means that there are 7,000 milligrams in 7 grams. Choices B, C, and D are incorrect because they do not correctly convert grams to milligrams.
2. What is the meaning of 'Exemplary'?
- A. Disappointing
- B. Praiseworthy
- C. Ordinary
- D. Unacceptable
Correct answer: B
Rationale: The correct answer is B: 'Praiseworthy.' Exemplary is used to describe something that is commendable, outstanding, or worthy of praise. Therefore, the meaning of 'Exemplary' is praiseworthy, not disappointing, ordinary, or unacceptable. Choice A is incorrect because 'Disappointing' is the opposite of 'Exemplary.' Choice C is incorrect as 'Ordinary' does not reflect the exceptional nature of 'Exemplary.' Choice D is incorrect as 'Unacceptable' is the opposite meaning of 'Exemplary.'
3. What is the chemical reaction that involves breaking down a compound into component parts?
- A. Decomposition
- B. Synthesis
- C. Combustion
- D. Single replacement
Correct answer: A
Rationale: Decomposition is the correct answer because in a decomposition reaction, a compound is broken down into simpler substances. This type of reaction involves the splitting of a compound into its component parts, often through the use of heat, light, or electricity. Synthesis (choice B) is the opposite process where simpler substances are combined to form a more complex compound. Combustion (choice C) is a reaction involving rapid oxidation often accompanied by heat and light. Single replacement (choice D) is a reaction where one element replaces another in a compound.
4. Solve for x: 3x + 2 = 14
- A. x = 4
- B. x = 2
- C. x = 6
- D. x = 3
Correct answer: A
Rationale: To solve the equation 3x + 2 = 14, first, subtract 2 from both sides to isolate 3x: 3x = 12. Then, divide by 3 to solve for x: x = 4. Therefore, the correct answer is A, x = 4. Choice B, x = 2, is incorrect because it does not satisfy the equation. Choice C, x = 6, is incorrect as well since it does not satisfy the equation. Choice D, x = 3, is also incorrect as it does not satisfy the given equation.
5. What is the meaning of Collusion?
- A. Cooperation
- B. Conspiracy
- C. Separation
- D. Rejection
Correct answer: B
Rationale: The correct answer is B: 'Conspiracy.' Collusion refers to a secret agreement or conspiracy, often for deceitful or illegal purposes. Choice A, 'Cooperation,' is incorrect as collusion implies a deceptive or dishonest agreement, not a genuine cooperation. Choice C, 'Separation,' is incorrect as it denotes the opposite of collusion, which involves working together secretly. Choice D, 'Rejection,' is unrelated to collusion, which involves secret cooperation for deceptive purposes.
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