Start Studying for Free Today: 📘 Study Guide & Course Breakdown: oapractice.com/d425 🧩 Free Practice Questions: answers.oapractice.com/practice-questions/C/?ec=D4… 🧩 Free Timed Exams: onlineexamtest.com/exam_sets/introduction-to-chemi… 📬 Want a Guaranteed Pass? Connect with our premium tutors today: oapractice.com/contact Getting ready for the WGU D425 Chemistry OA? These FREE practice questions and answers breaks it all down for you. Whether chemistry is a key step on your path to becoming a registered nurse, a healthcare professional, or a science minded student building toward a career in an American hospital, lab, or clinic, D425 is a course you want to pass the first time. This video walks you through the exact concepts WGU tests on the objective assessment, with clear examples, memory hooks, and the exam traps that help you choose the right answer and pass on your first attempt. In this course, we cover the core D425 topics that show up most on the OA: 🔸 Matter and measurement: states of matter, elements, compounds, and homogeneous versus heterogeneous mixtures, plus physical and chemical changes, significant figures, density, accuracy versus precision, and scientific notation 🔸 Atomic structure and the periodic table: protons, neutrons, and electrons, atomic number and mass, isotopes and average atomic mass, and periodic trends like atomic radius, ionization energy, and electronegativity 🔸 Chemical bonding: ionic bonds and ion formation, covalent bonds and electron sharing, single, double, and triple bonds, and polar versus nonpolar molecules 🔸 Reactions, solutions, and gases: balancing equations and conservation of mass, synthesis, decomposition, and other reaction types, catalysts, solutions and solubility, acids, bases, pH and neutralization, plus Boyle's law, Charles's law, kinetic molecular theory, and equilibrium with Le Chatelier's principle Why does this matter? The D425 OA rewards application, not just memorization. The exam gives you a scenario or calculation and asks which concept, bond, or law fits, so we focus on the distinctions students mix up most, like ionic versus covalent bonds, accuracy versus precision, and Boyle's versus Charles's law. This foundation also carries into nursing and healthcare, helping you understand medications, lab values, and the chemistry behind patient care in any American clinical setting. Study smarter, not longer. Pair this video with our free practice questions and timed exams above to lock in your knowledge before test day. 🔔 Don't forget to LIKE, SUBSCRIBE, and hit the bell so you never miss a new WGU OA study session. New videos drop every week to help you reach your goal! Disclaimer: OA Practice is not affiliated with WGU or any certification providers. This content is created independently for educational purposes to help students prepare for their assessments. #WGU #WGUD425 #Chemistry #WGUOA #GeneralChemistry #OAPractice #WGUStudent #NursingSchool #ExamPrep #StudyGuide #PracticeQuestions #OnlineDegree #WGUExam #PassTheOA #ChemistryStudent #PeriodicTable #ChemicalBonding #AcidsAndBases #PreNursing #WGUNursing