D866: General Chemistry II with Lab

General Chemistry II with Lab moves into stoichiometry, solution concentration, and reaction predictions — quantitative chemistry with genuine real-world application.

What D866 covers

The course equips students with a comprehensive understanding of advanced chemical principles and their real-world applications, covering energy transfer during physical/chemical processes and compound naming/recognition, emphasizing critical thinking and practical skills.

Students gain proficiency in stoichiometry, solution concentration, and reaction predictions, learning to design experiments, collect and analyze data, and apply their knowledge to solve environmental and industrial problems, plus communicating scientific findings in reports and presentations.

The D866 performance assessment

Expect a performance assessment requiring you to solve a stoichiometry or solution-concentration problem and apply it to an environmental or industrial scenario.

Key topics in D866

• Stoichiometry and solution concentration
• Reaction predictions
• Environmental and industrial applications
• Scientific communication

Writing tips for D866

Follow the task instructions and rubric line by line

WGU performance assessments for D866 are graded against a fixed rubric — every rubric line has to be visibly addressed, usually with a labeled heading that mirrors the rubric language. Skipping a rubric point because it seems minor is the single most common reason a competent submission comes back "Not Yet Competent" for revision.

Connect content mastery to the classroom you'll eventually teach

Even content-heavy science courses like D866 in a Science Education degree ultimately serve teaching goals. Where the task allows, connecting content mastery to how you'd explain it to secondary students strengthens a response beyond content accuracy alone.

Because WGU is self-paced, don't let "no deadline pressure" become no submission

There's no weekly due date forcing progress, which means procrastination costs more at WGU than at a traditional term-based school — a stalled task can quietly eat weeks of a term. Treat your own target date for each D866 assessment as a real deadline.

Why students seek help with D866

Candidates sometimes solve quantitative chemistry problems without the applied environmental/industrial context the course specifically requires — the rubric typically wants that applied context shown, not calculation alone.

How GradeEssays helps with D866

Share your task instructions and rubric, and your writer will build a response with genuine environmental or industrial application context, not calculation alone.

Prerequisites and program context

D866 requires General Chemistry I (D843/D844) as a prerequisite.

• Bachelor of Science, Science Education (Secondary Chemistry)
• Bachelor of Science, Science Education (Secondary Physics)

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