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Help
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
More than 450 practice problems coordinate with the chapters in the Chemical Engineering Reference Manual, so you can work appropriate problems as you study. You'll reinforce what you've learned and discover where you may need additional preparation. Most of the practice problems are in the PE exam's multiplechoice format. Stepbystep solutions provide clear, complete explanations of how to reach the answer most efficiently.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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