Aqueous Hydrochloric Acid Reacts with Magnesium to Produce Hydrogen Gas

question 42

Multiple Choice

Aqueous hydrochloric acid reacts with magnesium to produce hydrogen gas according to the balanced equation below. 2 HCl(aq) + Mg(s) → MgCl₂(aq) + H₂(g)
If 250.0 mL of 3.00 M HCl is combined with 9.92 g Mg,what volume of hydrogen gas can be produced? Assume the temperature and pressure of the gas are 25 °C and 0.988 atm,respectively.(R = 0.08206 L⋅atm/mol⋅K)

• A) 4.60 L
• B) 5.05 L
• C) 9.28 L
• D) 10.1 L
• E) 18.6 L

Comprehend the structure and types of taxes in the U.S., including Social Security, excise, income, and sales taxes.

Recognize the growth in government roles over the years and the key factors contributing to this trend.

Identify the main sources of federal and state tax revenue and their significance.

Understand the budget preparation process within the federal government, particularly the role of the Office of Management and Budget.

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