Sodium oxide formation and thermodynamics

1 Read the question

The question is College Board's, from the 2026 exam. It starts on page 16 of the PDF.

Open Question 7 (PDF, page 16)

2 Write your answer

Answer each part the way you would on the exam, in full sentences, with your work shown. Your writing saves as you type.

1. Part A
2. Part B
3. Part C

3 Score it

Score your answer against College Board's scoring guidelines, one point at a time. Give yourself a point only when your answer says what the guideline asks for.

Scoring guidelines (PDF, page 11)