AP Chemistry 6.1 Endothermic and Exothermic Processes Questions

Practice AP Chemistry Unit 6.1 questions on classifying energy changes from temperature observations and explaining heat transfer between systems and surroundings.

Exam points

Use stoichiometric and molecular models to analyze reactions, quantities, and composition from experimental data.
Calculate mass, moles, concentration, and formula relationships using balanced equations and measured observations.

Covered syllabus points

6.1.A—Explain the relationship between experimental observations and energy changes associated with a chemical or…

[Maximum number: 1]

Answer the following questions about an experiment in which $\mathrm{CaCO}_{3}(s)$ is combined with HCl(a q), represented by the following balanced equation.

\mathrm{CaCO}_{3}(s)+2 \mathrm{HCl}(a q) \rightarrow \mathrm{CaCl}_{2}(a q)+\mathrm{CO}_{2}(g)+\mathrm{H}_{2} \mathrm{O}(l)

Is the reaction endothermic or exothermic? Justify your answer using the information in the table.

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Covered syllabus points

Question 1