By McGraw-Hill Education
Glencoe Chemistry: subject and alter © 2008 combines the weather scholars have to be triumphant! A entire process learn designed for a first-year highschool chemistry curriculum, this software accommodates beneficial properties for powerful math aid and problem-solving improvement. New gains for 2008 contain content material geared up round topics, mammoth rules, and major rules, selling pupil comprehension and trying out good fortune; extra overview recommendations than ever; Dinah Zike's FOLDABLES, third-dimensional picture organizers that support scholars grab info for assessment and retention; the most recent in Glencoe school room expertise, and lots more and plenty extra!
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Extra resources for Chemistry. Matter and Change
2. Observe 5-mL samples of alcohol (dyed red), glycerol (dyed blue), corn oil, and water. Plan the order in which to add the liquids to a graduated cylinder to form four layers. WARNING: Keep alcohol away from open flames. 3. Test your plan by adding the liquids, one at a time, to the graduated cylinder. When adding each liquid, tilt the graduated cylinder, and slowly pour the liquid so it runs down the inside. When adding the glycerol, allow it to settle before adding the next liquid. 4. Did the liquids form four distinct layers?
Wash your hands with soap and water before you leave the lab. 10. If chemicals come in contact with your eyes or skin, flush the area immediately with large quantities of water. Immediately inform your teacher of the nature of the spill. 11. Handle all chemicals carefully. Check the labels of all bottles before removing the contents. Read the label three times: before you pick up the container, when the container is in your hand, and when you put the bottle back. 12. Do not take reagent bottles to your work area unless instructed to do so.
Give examples of quantitative data that are true for the element copper. 10. A student in your class announces that he has a theory to explain why he scored poorly on a quiz. Is this a proper use of the term theory? Explain your answer. A. D. B. E. C. Extended Response Select the symbol for the safety rule being described in each case. 11. Explain why scientists use mass for measuring the amount of a substance instead of using weight. 15. Safety goggles should be worn whenever you are working in the lab.