Nursing Elites

1. When baking soda (sodium bicarbonate) reacts with vinegar (acetic acid), what type of reaction occurs?

• A. Combustion
• B. Double displacement
• C. Decomposition
• D. Synthesis

Correct answer: B

Rationale: When baking soda (sodium bicarbonate) reacts with vinegar (acetic acid), a double displacement reaction occurs. In this reaction, the positive ions in baking soda switch places with the positive ions in vinegar to form water, carbon dioxide, and a salt. Combustion involves a reaction with oxygen to produce heat and light energy. Decomposition is the breakdown of a compound into simpler substances, which is not the case in the given reaction. Synthesis is the combination of substances to form a more complex compound, which is also not the type of reaction observed when baking soda and vinegar react.

2. Which sentence uses the semicolon correctly?

• A. The play was long; however, it was very entertaining.
• B. The guests arrived; Sarah greeted them at the door.
• C. John likes apples; Mary prefers oranges.
• D. He was tired; he went to bed early.

Correct answer: B

Rationale: Option B correctly uses a semicolon to join two independent clauses related to the same event. In this sentence, 'The guests arrived' and 'Sarah greeted them at the door' are both independent clauses that are appropriately connected using a semicolon. Choice A incorrectly uses a semicolon before 'however,' which is a conjunction that should be preceded by a comma. Choice C incorrectly uses a semicolon to connect two independent clauses that are not closely related. Choice D incorrectly uses a semicolon to connect two independent clauses without a clear relationship or cohesion.

3. Hampton was born and raised in Maywood, a suburb of Chicago, Illinois, in 1948. Which revision best improves the sentence?

• A. NO CHANGE
• B. in Maywood, of Chicago, Illinois in 1948.
• C. in Maywood, of Chicago, Illinois, in 1948.
• D. in Chicago, Illinois of Maywood in 1948.

Correct answer: C

Rationale: The corrected choice C 'in Maywood, of Chicago, Illinois, in 1948.' is the best revision as it places commas around the city and state, as well as around the year, improving clarity and readability. Choice A is incorrect as it does not provide the necessary punctuation for clarity. Choice B incorrectly places 'of Chicago' between 'Maywood' and 'Illinois,' disrupting the flow of information. Choice D reverses the order of 'Chicago, Illinois' and 'Maywood,' making it structurally incorrect.

4. Which of the answer choices gives the best definition of the underlined word in the following sentence? 'Finlay flatly refused to take part in the piano recital, so his parents had to cajole him with the promise of a trip to his favorite toy store.'

• A. Prevent
• B. Threaten
• C. Insist
• D. Coax

Correct answer: D

Rationale: In this context, 'cajole' means to persuade someone by using flattery or promises, which is best represented by 'coax.' 'Prevent' (choice A) means to stop something from happening, 'threaten' (choice B) means to communicate an intention to harm, and 'insist' (choice C) means to demand something forcefully, so these choices do not fit the context of persuading with flattery or promises.

5. How does the mass of an object affect its inertia?

• A. Mass has no impact on inertia
• B. Higher mass increases inertia
• C. Higher mass decreases inertia
• D. Mass influences gravitational force, not inertia

Correct answer: B

Rationale: Inertia is the resistance of an object to changes in its state of motion. The greater the mass of an object, the greater its inertia because it requires more force to change its state of motion. This concept aligns with Newton's first law of motion, which states that an object at rest will remain at rest, and an object in motion will continue in motion with the same speed and direction unless acted upon by an external force. Therefore, higher mass increases inertia, making it more difficult to alter the object's state of motion. Choice A is incorrect as mass does impact inertia. Choice C is incorrect as higher mass actually increases inertia, not decreases it. Choice D is incorrect as while mass does affect gravitational force, it also directly impacts inertia.

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