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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.
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All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
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About the AuthorRaymond Chang received his B.Sc in chemistry from London University, and his Ph.D. in chemistry from Yale University. After doing postdoctoral research at Washington University and teaching for a year at Hunter College, he joined the Chemistry Department of Williams College. He wrote books on physical chemistry, industrial chemistry, and physical science.
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This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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