- The TX PACT 740 has 125 selected-response questions and a passing score of 240.
- Energy and Chemical Bonding plus Chemical Reactions together make up 46% of the exam.
- You get a periodic table, constants/formulas page, and on-screen scientific calculator - no outside materials needed.
- Total appointment time is 4 hours: 15 minutes of tutorial plus 3 hours 45 minutes of testing.
What the TX PACT 740 Actually Tests
TX PACT: Chemistry: Grades 7-12 (740) is a Texas Education Agency Pre-Admission Content Test, administered by Pearson Evaluation Systems as a computer-administered test at sites across Texas and nationwide. Unlike a general teaching-skills exam, PACT is built to verify that you already know the chemistry content well enough to enter an educator preparation program (EPP) without first passing a coursework gate. If you're still asking basic questions about what this credential is and how it fits into Texas certification, our overview piece on What Is TX PACT 740? and the companion explainer TX PACT 740 Meaning are good starting points before you dive into content prep.
The exam covers grades 7-12 chemistry content across five domains subdivided into 17 competencies. It's a content-mastery test, not a pedagogy test - meaning your prep time should go almost entirely into chemistry itself rather than classroom-management theory.
Registration, Fee, and Appointment Mechanics
The exam fee is $106. Because PACT is designed for candidates who hold a bachelor's degree and have never been admitted to a Texas-approved EPP, registration mechanics differ from a typical retake-anytime certification exam. For a full breakdown of eligibility rules, degree requirements, and how the EPP-admission pathway differs from the intensive pre-service route, read TX PACT 740 Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Your total appointment is 4 hours: the first 15 minutes cover the computer-adaptive testing tutorial and compliance agreement, followed by 3 hours and 45 minutes of actual testing time. Plan your test-day schedule around that full block - arrive rested, since nearly four hours of sustained selected-response answering is mentally taxing even for strong chemistry students. If you need help figuring out when seats are available or how far in advance to book, see TX PACT 740 Exam Dates 2026: Testing Windows, Deadlines & Scheduling. For the complete cost picture beyond the base fee, check TX PACT 740 Certification Cost 2026: Complete Pricing Breakdown.
Key Takeaway
Budget the full 4-hour appointment mentally, not just the 3 hours 45 minutes of testing - the tutorial and compliance agreement eat into your energy before question one even loads.
The Five Domains, Ranked by Weight
Understanding domain weight is the single highest-leverage thing you can do before opening a textbook. Two domains - Energy and Chemical Bonding and Chemical Reactions - each carry 23% of the exam, together accounting for 46% of all scored questions. That means nearly half the test lives in thermodynamics, bonding, reaction chemistry, and equilibrium. For a full breakdown of every competency inside each domain, see TX PACT 740 Exam Domains 2026: Complete Guide to All 5 Content Areas.
Domain 3: Energy and Chemical Bonding (23%)
Covers thermodynamics, calorimetry, bonding types, and intermolecular forces - the physical-chemistry backbone of the exam.
- Enthalpy, calorimetry calculations, and heat transfer problems
- Ionic, covalent, and metallic bonding distinctions
- IUPAC nomenclature and molecular geometry (VSEPR, hybridization)
- Intermolecular forces and their effect on physical properties
Domain 4: Chemical Reactions (23%)
Covers reaction classification, kinetics, equilibrium, acid-base behavior, and electrochemistry.
- Reaction types and rate-determining factors
- Equilibrium and Le Chatelier's principle applications
- Acid-base chemistry and titration calculations
- Oxidation-reduction reactions and electrochemistry (galvanic/electrolytic cells)
Domain 1: Nature of Science (18%)
Focuses on scientific processes, measurement, lab safety, and how chemistry knowledge is constructed and validated.
- Experimental design and controlled variables
- Lab safety protocols appropriate for grades 7-12
- Data analysis and appropriate use of significant figures
Domain 2: Matter and Atomic Structure (18%)
Covers atomic theory, periodicity, and the structure of matter that underlies every later domain.
- Subatomic particles, isotopes, and electron configuration
- Periodic table trends and their causes
- States of matter and phase transitions
Domain 5: Stoichiometry and Solutions (18%)
Covers quantitative chemistry - the math-heavy domain many candidates underestimate.
- Mole conversions and limiting-reactant problems
- Molarity, dilution, and solution concentration calculations
- Gas laws and their quantitative applications
Notice that the three quantitative-heavy domains - Energy and Chemical Bonding, Chemical Reactions, and Stoichiometry and Solutions - together account for the majority of scored items. If arithmetic under time pressure isn't your strength, that's exactly where extra practice pays off. For a candid assessment of how tough this exam actually feels in practice, read How Hard Is the TX PACT 740 Exam? Complete Difficulty Guide 2026.
Question Style and On-Screen Tools
The exam consists of 125 selected-response questions. Unscored field-test questions may be mixed in to help Pearson calibrate future forms, but you won't know which items are field-tested, so treat every question as if it counts. Your final scaled score is based only on the scored questions, and the passing score is 240. For the exact mechanics of how raw answers convert to that scaled number, see TX PACT 740 Passing Score 2026: Exactly What You Need to Pass.
Three tools are built directly into the testing interface:
- A periodic table, so you don't need to memorize every atomic mass or symbol
- A constants and formulas page, covering the equations you'd otherwise need to recall from memory
- An on-screen scientific calculator for stoichiometry, equilibrium, and thermodynamics math
A Domain-Weighted Study Timeline
Because Energy and Chemical Bonding and Chemical Reactions together make up 46% of the exam, your study calendar should mirror that weighting rather than splitting time evenly across all five domains. Techniques like spaced repetition and short focused review blocks work well here, but only when applied against the right content in the right order.
Matter and Atomic Structure + Nature of Science
- Refresh periodic trends, electron configuration, and lab-safety fundamentals
- Practice significant figures and experimental-design questions
Energy and Chemical Bonding (heaviest domain)
- Drill calorimetry and thermodynamics calculations daily
- Master IUPAC nomenclature and VSEPR-based molecular geometry
- Practice identifying bond type from compound properties
Chemical Reactions (second-heaviest domain)
- Work equilibrium and Le Chatelier problems until they're automatic
- Practice titration and acid-base calculations with the on-screen calculator
- Review oxidation-reduction and basic electrochemistry cell diagrams
Stoichiometry and Solutions
- Mole conversions, limiting reactants, and molarity/dilution problems
- Gas law applications under timed conditions
Full-length practice and review
- Take timed practice sessions covering all five domains
- Revisit weak competencies identified during practice
For a one-page reference you can scan the night before your appointment, bookmark TX PACT 740 Cheat Sheet 2026: One-Page Review of Must-Know Facts. And when you're ready to simulate real exam conditions, our practice test platform lets you work through selected-response items in the same format you'll see on test day.
Where First-Time Candidates Lose Points
Most candidates who fall short of 240 don't lack chemistry knowledge overall - they lose points in predictable places tied directly to the two heaviest domains.
- Treating thermodynamics as memorization instead of application. Calorimetry and enthalpy questions on the 740 usually require you to work through a calculation, not just recall a definition.
- Underpracticing equilibrium shifts. Le Chatelier's principle questions often present a scenario (temperature change, added reagent, volume change) and ask you to predict the shift - this requires reasoning practice, not flashcards.
- Skipping nomenclature drills. IUPAC naming appears within the Energy and Chemical Bonding domain and is easy to under-practice because it feels "basic," yet it's a reliable source of missed points.
- Running out of time on the quantitative domains. With 125 questions in 3 hours 45 minutes of testing time, you have roughly 1.8 minutes per question on average - stoichiometry and titration calculations need to be fast and accurate, not just eventually correct.
Key Takeaway
Prioritize calculation speed on thermodynamics, equilibrium, and stoichiometry problems - these question types appear across three domains and reward practiced fluency over last-minute review.
Who This Exam Is For
PACT is intended specifically for candidates who already hold a bachelor's degree and have never been admitted to a Texas-approved EPP. Passing lets you demonstrate content mastery for EPP admission rather than starting your teacher-prep coursework from a content-knowledge deficit. This distinguishes the pathway from routes that require prerequisite coursework before you can even sit for a certification exam.
If you're weighing whether pursuing this route is worth the time and the $106 fee relative to your career goals, our analysis in Is the TX PACT 740 Certification Worth It? Complete ROI Analysis 2026 walks through the tradeoffs. For a sense of what secondary chemistry teaching roles typically look like after certification, see TX PACT 740 Salary Guide 2026: Complete Earnings Analysis, and browse open positions through TX PACT 740 Jobs. If you want the broader certification landscape and formal training options, TX PACT 740 Certification and TX PACT 740 Training cover next steps once you've passed.
| Exam Fact | Detail |
|---|---|
| Total questions | 125 selected-response |
| Total appointment time | 4 hours (15 min tutorial + 3 hrs 45 min testing) |
| Passing score | 240 (scaled) |
| Exam fee | $106 |
| Heaviest domains | Energy and Chemical Bonding (23%); Chemical Reactions (23%) |
| Provided tools | Periodic table, constants/formulas page, on-screen calculator |
Once you've internalized the domain weights and mechanics above, spend your remaining prep time on full practice runs. Reviewing your results against each of the five domains - rather than just tracking an overall score - tells you exactly where to spend your final study hours. Our practice test platform breaks results down by domain so you can see whether Chemical Reactions or Energy and Chemical Bonding needs another pass before your appointment. For a deeper look at how difficulty is distributed across the test as a whole, revisit TX PACT 740 Pass Rate 2026: What the Data Shows.
Frequently Asked Questions
There are 125 selected-response questions, with 3 hours and 45 minutes of testing time inside a total 4-hour appointment that also includes a 15-minute tutorial and compliance agreement.
The passing score is 240 on the scaled scoring system. The final scaled score reflects only scored questions - unscored field-test items don't count against or for you.
Focus first on Energy and Chemical Bonding and Chemical Reactions, since together they represent 23% each - 46% of the exam combined. Matter and Atomic Structure and Stoichiometry and Solutions each carry 18%, with Nature of Science also at 18%.
No outside materials are needed - the exam provides an on-screen scientific calculator, a periodic table, and a constants and formulas page as part of the testing interface.
PACT exams taken for EPP admission are not subject to the standard five-attempt certification test limit. However, candidates testing through the intensive pre-service route are capped at five attempts, with a required 30-day wait between attempts.