ATI TEAS 7
Chemistry
1. What is the net ionic equation for the reaction: 2HCl(aq) + Ba(OH)2(aq) → 2H2O(l) + BaCl2(aq)?
- A. 2H+(aq) + 2OH-(aq) → 2H2O(l)
 - B. 2HCl(aq) + Ba(OH)2(aq) → BaCl2(aq) + 2H2O(l)
 - C. 2H+(aq) + Ba2+(aq) → Ba2+(aq) + 2H+(aq)
 - D. Ba(OH)2(aq) + HCl(aq) → BaCl2(aq) + 2H2O(l)
 
Correct answer: a
Rationale: The net ionic equation includes only the species that undergo a change during the reaction.
2. Stephanie delegates effectively if she has authority to act, which is BEST defined as:
- A. having responsibility to direct others
 - B. being accountable to the organization
 - C. having legitimate right to act
 - D. telling others what to do
 
Correct answer: A
Rationale: The correct answer is A: 'having responsibility to direct others.' Effective delegation involves entrusting tasks and responsibilities to others while still maintaining ultimate accountability. Authority to act means having the responsibility to direct others, making decisions, and overseeing the completion of tasks. This definition aligns with the core concept of delegation, where individuals are empowered and authorized to carry out specific duties. Being accountable to the organization (option B) is important but does not fully capture the proactive nature of delegation. Having a legitimate right to act (option C) is essential for effective delegation, but it is more about the formal authorization rather than the active responsibility to direct others. Simply telling others what to do (option D) is a narrow and authoritarian view of delegation that does not encompass the collaborative and empowering nature of effective delegation.
3. The author's tone towards UBI can be described as
- A. Strongly supportive, advocating for its immediate implementation without reservations.
 - B. Strongly critical, highlighting only the potential drawbacks and dismissing its benefits.
 - C. Neutral and objective, presenting both sides of the argument without taking a stance.
 - D. Cautiously optimistic, acknowledging both the potential and challenges while calling for further discussion.
 
Correct answer: D
Rationale: The passage acknowledges both positive and negative aspects of UBI, suggesting a cautious and balanced perspective, aligning with D.
4. Which number is the opposite of -3?
- A. -6
 - B. 3
 - C. 0
 - D. 6
 
Correct answer: B
Rationale: The opposite of a number is the one with the same distance from zero but on the opposite side of the number line. So, the opposite of -3 is 3.
5. Which phrase best describes the tone of the following sentence: "He slammed his fist on the table, his voice booming with anger."
- A. Playful
 - B. Formal
 - C. Agitated
 - D. Melancholy
 
Correct answer: C
Rationale: The verbs and descriptive language convey strong emotions and agitation.
6. What is the structure that attaches to each chromosome during mitosis?
- A. Centromere
 - B. Telomere
 - C. Spindle apparatus
 - D. Nucleolus
 
Correct answer: A
Rationale: Rationale: The centromere is the structure that attaches to each chromosome during mitosis. It is a region of the chromosome where the two sister chromatids are held together and where the spindle fibers attach during cell division. The centromere plays a crucial role in ensuring that each daughter cell receives the correct number of chromosomes during cell division. Telomeres are structures found at the ends of chromosomes that protect them from deterioration and fusion with neighboring chromosomes. The spindle apparatus is a structure made of microtubules that helps separate chromosomes during cell division. The nucleolus is a region within the nucleus where ribosomal RNA synthesis occurs and is not directly involved in chromosome attachment during mitosis.
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