Consider the Dissociation Reaction of the Acid HF

question 37

Multiple Choice

Consider the dissociation reaction of the acid HF. Why is ΔS negative?

• A) The reaction is expected to be exothermic, and ΔS thus should be negative.
• B) The reaction is expected to be endothermic, and thus ΔS should be negative.
• C) Each HF molecule produces two ions when it dissociates.
• D) The ions are hydrated.
• E) none of these

Identify appropriate graphical representations for various types of data.

Comprehend transformations to achieve linearity in relationships between variables.

Recognize special cases of scatterplots, such as time plots, and their uses.

Understand the purposes and effects of transformations in data analysis.

---

Definitions:

High Tide

The state of the tide when it is at its highest level, typically caused by the gravitational pull of the moon and the sun on the Earth's oceans.

Downcutting

A process by which streams or rivers erode their beds, cutting downwards into the ground and often leading to valley deepening.

Ice Ages

Periods of extensive glacial coverage, where major portions of the Earth's surface are covered by ice sheets.

Delta

A landform at the mouth of a river, formed from the deposition of sediment carried by the river as it enters slower-moving or standing water.