TX PACT Chemistry (740) Practice Tests & Test Prep by Exam Edge

(4.6) Based on 28 Reviews

TX PACT Chemistry Grades 7-12 product image

TEXES 740 Practice Test Features

Everything you need to pass your certification exam!

Passing your TX PACT Chemistry can be a very stressful time in your life. So why take chances with your preparation? Let us help you through the certification process.

Instant access to your online practice tests
Unlimited test access - available 24/7
Timed, untimed, and study guide modes
Detailed explanations for each question
15 online practice exams with 100 unique questions per exam
1,500 unique questions, if you purchase all 15 exams

Start your exam prep today with a TX PACT Chemistry practice test!

Testimonial Image ExamEdge's online practice test is that they mimicked the actual exam. I walked into the exam feeling confident I knew the material and walked out knowing my time studying with Exam Edge was well worth the effort."

Olivia R., Washington

Select Quantity

Buy one or save big with a practice test bundle for the TX PACT Chemistry exam.

# of Practice Tests

Regular Price

Your Savings

Your Price

15 practice tests

~~$449.25~~

Save $300.00

$149.25

Bonus 1: 100 Flash Cards --- Bonus 2: Study Guide Bonus: Flash Cards - Study Guide

10 practice tests

~~$299.50~~

Save $200.00

$99.50

Bonus 1: 100 Flash Cards --- Bonus 2: Study Guide Bonus: Flash Cards - Study Guide

5 practice tests

~~$149.75~~

Save $90.00

$59.75

Bonus : 100 Flash Cards Bonus: Flash Cards

1 practice test

no discount

$29.95

All transactions secured and encrypted
All prices are in US dollars

Get Instant Online Access Now!

TX PACT Chemistry Grades 7-12 Sample Test

1 of 5

The following energies are held in different types of bonds:

C – H bond: 415kJ.

Cl –Cl bond: 243kJ.

C – Cl bond: 330kJ.

H – Cl bond: 432 kJ.

What is the net energy change associated with the following reaction given this information?

CH₄(g) + 2 Cl₂ (g) --> CH₂Cl₂ (g) + 2 HCl (g)

Correct Answer:

-208kj.
to determine the net energy change for the given chemical reaction, we first need to understand the concept of bond enthalpies and how they affect the energetics of a reaction. bond enthalpies (or bond dissociation energies) represent the energy required to break one mole of a bond in a molecule in the gas phase, usually expressed in kilojoules per mole (kj/mol).

the reaction we are considering is: \[ \text{ch}_4(g) + 2\text{cl}_2(g) \to \text{ch}_2\text{cl}_2(g) + 2\text{hcl}(g) \] in this reaction: - **breaking bonds**: bonds are broken in the reactants, which requires energy. - **forming bonds**: bonds are formed in the products, which releases energy.

let’s calculate the total energy changes involving breaking and forming of bonds: - **bonds broken**: - two c–h bonds in ch4 (2 x 415 kj = 830 kj) - two cl–cl bonds in cl2 (2 x 243 kj = 486 kj) total energy required to break bonds = 830 kj + 486 kj = 1316 kj - **bonds formed**: - two c–cl bonds in ch2cl2 (2 x 330 kj = 660 kj) - two h–cl bonds in hcl (2 x 432 kj = 864 kj) total energy released in forming bonds = 660 kj + 864 kj = 1524 kj

to find the net energy change of the reaction, we subtract the total energy used to break bonds from the total energy released by forming bonds: \[ \text{net energy change} = \text{energy released} - \text{energy required} \] \[ \text{net energy change} = 1524 \text{ kj} - 1316 \text{ kj} \] \[ \text{net energy change} = 208 \text{ kj} \] therefore, the net energy change for the reaction is -208 kj, indicating that the reaction is exothermic. this means that more energy is released in forming the products than is required to break the bonds in the reactants, leading to a release of energy to the surroundings.

TX PACT Chemistry (740) Shortcuts

Top 10 Reasons for using Exam Edge to pass your TX PACT Chemistry Grades 7-12 exam

Exam Edge's TX PACT Chemistry Grades 7-12 was created to focus solely on the TX PACT Chemistry Grades 7-12 test. All practice test questions parallel the topics covered on the real test, are in the right proportion,
Our practice tests are designed to make you familiar with the real test. Our exams simulate the pressure of the real exam, by setting the per question time limit to be the same as the real exam. So when you take the actual test, you will feel comfortable with the requirements of the real exam.
We offer 15 online practice exams with 1,500 unique questions to help you prepare for your TX PACT Chemistry Grades 7-12 exam.
The low cost! The cost of ordering 5 practice tests is less than the cost of taking the real TX PACT Chemistry Grades 7-12 test. In other words, it would cost you less money to order 5 practice tests, than if you failed the real test and had to retake it. Now that is a bargain!
If you have to stop while taking one of our tests, you can continue right where you left off. When you continue the test, you will start exactly where you were, and with the same amount of time you had remaining.
After you complete a test, we provide your raw score (how many you answered correctly) and our estimate of the TX PACT score you would receive if you were taking the real test.
As you complete your practice tests, we show you which questions you answered correctly, which ones you answered incorrectly, and provide detailed step-by-step explanations for every single question on the test!
As a fully accredited member of the Better Business Bureau, we uphold the highest level of business standards. You can rest assured that we maintain all of the BBB Standards for Trust
Because the tests are web-based, there is no software to install. Our practice tests are available to you 24-hours a day. No matter where you are, you can take our practice tests on any computer with access to the internet.
If you need additional help, we offer specialized tutoring. Our tutors are highly qualified.

Pass Your TX PACT Chemistry Grades 7-12 Certification Exam with Exam Edge

Are you nervous about your upcoming TX PACT Chemistry Grades 7-12 certification exam? Look no further, Exam Edge is here to help you achieve your goal! Our world-class online practice certification tests are designed to provide you with the knowledge and confidence you need to pass your TX PACT Chemistry exam on your first try!

Key Facts on Exam Edge's online practice tests for your TX PACT Chemistry Grades 7-12 Exam.

15 Online Practice Exams: With Exam Edge, you'll have access to 15 practice tests, each with 100 questions, to help you thoroughly prepare for your TX PACT Chemistry (740) exam.
Instant Access: Get started immediately with instant access to your online practice exams. No waiting or software installation is required!
Detailed Explanations: Each question is accompanied by a detailed explanation, so you'll fully understand the reasoning behind the correct answer and improve your knowledge.
Take Each Exam 4 Times: You can take our practice exams up to 4 times, giving you plenty of opportunities to review and master the material.
Web-Based: Our TEXES practice tests are available 24/7 at your convenience, and because they are web-based, there is no software to install.
Psychological Advantage: Exam Edge practice tests will allow you to walk into your test day with confidence

Exam Edge practice tests are a valuable tool for helping you prepare for the Texas Educator Certification Program (740) certification exam. The practice tests provide a realistic simulation of the actual exam, allowing you to become familiar with the format, style, and types of questions you will encounter on the actual test. Certification exams don't just measure what you know -- they are also a test of how well you perform under pressure. The right type of test preparation helps you familiarize yourself not only with the material you're being tested on, but also the format of the test, so you feel less anxiety on test day.

TX PACT Chemistry Grades 7-12 Aliases Test Name

Here is a list of alternative names used for this exam.

TX PACT Chemistry Grades 7-12
TX PACT Chemistry Grades 7-12 test
TX PACT Chemistry Grades 7-12 Certification Test
TX PACT Chemistry test
TEXES
TEXES 740
740 test
TX PACT Chemistry Grades 7-12 (740)
TX PACT Chemistry Grades 7-12 certification