The Dissolution of Barium Hydroxide in Water Is an Exothermic

question 31

Multiple Choice

The dissolution of barium hydroxide in water is an exothermic process. Which of the following statements is correct?

• A)The enthalpy of solid barium hydroxide plus pure water is less than that of the solution, at the same temperature.
• B)The enthalpy of solid barium hydroxide plus pure water is greater than that of the solution, at the same temperature.
• C)The enthalpy of solid barium hydroxide plus pure water is the same as that of the solution, at the same temperature.
• D)The temperature of the solution is lower than of the barium hydroxide and water before mixing.
• E)When barium hydroxide dissolves in water, the system does work on the surroundings.

Understand the health care needs and concerns of the elderly, including the importance of exercise and nutrition.

Recognize the significance of social support and activities in the well-being of the elderly.

Understand the challenges and solutions related to caregiving for the elderly.

Recognize the importance of health screenings and preventive care for the elderly.

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