HESI A2
Chemistry HESI A2 Practice Test
1. Which of the following pH values is most likely for lemon juice?
- A. 3
- B. 5
- C. 7
- D. 9
Correct answer: A
Rationale: Lemon juice is highly acidic with a pH around 2-3, making it more acidic than neutral substances. A pH of 5 is too high for lemon juice, indicating less acidity. Similarly, pH 7 is neutral, and pH 9 would be alkaline, which is not characteristic of lemon juice. Therefore, the correct answer is option A (pH 3).
2. Which phrase correctly completes the sentence? She went to the party ___ her dislike for the host.
- A. Despite of
- B. Even though
- C. Although
- D. In spite of
Correct answer: D
Rationale: The correct phrase to complete the sentence is 'In spite of.' This phrase is used to indicate that an action is taken despite a particular circumstance or feeling. In this case, she went to the party in spite of her dislike for the host, meaning she attended the party regardless of her negative feelings towards the host. Choice A, 'Despite of,' is incorrect as the correct phrase is 'Despite,' without the preposition 'of.' Choice B, 'Even though,' is not the best fit in this context as it does not express the contrast between attending the party and disliking the host as effectively as 'In spite of.' Choice C, 'Although,' is also not the most suitable choice as it is used to introduce a contrast, but 'In spite of' provides a stronger emphasis on the contradiction between attending the party and disliking the host.
3. Multiply: 52 × 04 =
- A. 0.00208
- B. 0.0208
- C. 0.208
- D. 2.08
Correct answer: B
Rationale: To multiply 52 by 04, you first multiply the two numbers together: 52 x 4 = 208. Since there are two decimal places in the expression, you need to divide the result by 100, which gives you 0.0208. Therefore, the correct answer is B. Choice A (0.00208) is incorrect because it represents a much smaller value obtained by considering the decimal incorrectly. Choice C (0.208) is incorrect because it does not account for the decimal placement. Choice D (2.08) is incorrect as it does not consider the requirement to convert the result into decimal form.
4. In the number 743.25, which digit represents the tenths place?
- A. 3
- B. 4
- C. 2
- D. 5
Correct answer: C
Rationale: In the number 743.25, the tenths place is the first digit to the right of the decimal point, which is 2. Therefore, the correct answer is C. Choice A (3) represents the hundredths place, choice B (4) represents the units place, and choice D (5) represents the hundredths place.
5. Select the meaning of the word 'amalgamate' in the sentence: 'If the companies amalgamate, some employees may lose their jobs.'
- A. Disband
- B. Move
- C. Merge
- D. Regroup
Correct answer: C
Rationale: The word 'amalgamate' in the sentence indicates that if the companies come together, combine, or unite as one entity, which aligns with the meaning of 'merge.' Amalgamation often refers to the merging or combining of two or more entities into one. 'Disband' (Choice A) means to break up or dissolve, which is opposite to what happens when companies amalgamate. 'Move' (Choice B) and 'Regroup' (Choice D) are not directly related to the process of companies amalgamating or merging.
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