Cover
Quick mode selects one question from each official topic, so no branch disappears by chance.
GENERAL CHEMISTRY · PERIODIC PROPERTIES · MIXED PRACTICE
Switch the property.
Keep the cause.
Retrieve across all four official topics with coverage-controlled quick and mastery sets drawn from the complete sixteen-question learning bank.
4official topics
12study objectives
4guided lessons
16practice questions
5choices per question
Why this mix works
Coverage first. Interleaving second.
Retrieve
Mastery mode selects one question from every study objective for a complete twelve-outcome sweep.
Discriminate
Mixed order removes the lesson cue: decide whether the prompt needs classification, charge, electrons, a trend, or observations.
Repeat
A new set changes selected questions and answer positions while preserving stable answer identities.
Balanced mixed retrieval
Choose breadth or mastery.
Both modes give immediate explanations and private issue reporting. Results remain on this device and do not estimate a DAT score.
16 PRACTICE QUESTIONS · 2 STUDY MODES
Switch the evidence. Preserve coverage.
Each mode covers its intended topics, then shuffles question order and all five answer choices without changing the answer key.
Sources
Official scope, original practice.
The four topic labels come from the ADA DAT User’s Manual 2026 ↗. The ADA does not publish topic quotas, so DAT TRAIN does not invent them.
Free OpenStax sections support the lessons. DAT TRAIN questions and explanations are original and are not copied from the DAT.