A 0122-G Sample of Unknown Metal (X)reacts with Hydrochloric Acid to to Produce

question 46

Multiple Choice

A 0.122-g sample of unknown metal (X) reacts with hydrochloric acid to produce 77.5 mL of "wet" gas at 20 °C and 754 mm Hg.What is the unknown metal (X) ? (The vapor pressure of water at 20 °C is 18 mm Hg. )
2 X(s) + 6 HCl(aq) → 2 XCl3(aq) + 3 H₂(g)

• A)Al
• B)Cr
• C)Mn
• D)Ni
• E)Ga

---

Definitions:

Passive

A grammatical voice or communication style where the subject of the sentence has an action done to it, often downplaying the actor.

Correct Procedures

Established or prescribed methods to be followed routinely for the execution of tasks or functions.

Active

Active refers to a state of engagement, movement, or participation, often used to describe processes, individuals, or systems that are currently in operation or involved in action.

Topic Sentence

A sentence that expresses the main idea of a paragraph or section, serving as a summary or introduction to the content that follows.