Reference no: EM13586411

Question 1: Which of the following correctly shows a neutralization reaction between a hydronium ion and a hydroxide ion?

• H⁺ + H₂O H₃O⁺
• H₂O H⁺ + OH^-
• H₃O+ + OH^- 2 H₂O
• H₂O + NH₃ OH^- + NH₄⁺

Question 2: If 1.20 moles of an ideal gas occupy a volume of 18.2 L at a pressure of 1.80 atm, what is the temperature of the gas, in degrees Celsius?

• -125 C
• 59.5 C
• 273 C
• 332 C

Question 3: Which describes nuclear power plants?

• They generate power directly from nuclear reactions.
• They supply over 50% of the nation's power needs.
• Compared to fossil fuels, they require much less fuel.
• They have more atmospheric pollutants compared to fossil fuels.

Question 4: A student dissolves 4.5 g of sodium chloride (NaCl) into 75 g of water (H₂O). Which of the following statements is correct regarding the resulting solution when it is compared to the pure solvent?

• Both the vapor pressure and the boiling point will increase.
• The boiling temperature and the freezing temperature will decrease.
• The freezing temperature will increase and the vapor pressure will decrease.
• The vapor pressure will decrease and the boiling temperature will increase.

Question 5: When 1.5 L of methane gas combust in an excess of oxygen at standard temperature and pressure, how many liters of water vapor will be produced

CH₄ (g) + 2O₂ (g) CO₂ (g) + 2H₂O (g)

• 0.75 L
• 1.5 L
• 3.0 L
• 6.0 L