Draw a structural formula for the intermediate in the following reaction: CH2Cl2 (CH3)3CCH=CHC(CH3)3 Cl2 + You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. • Do not include counter-ions, e.g., Na", I', in your answer. C P opy aste ChemDoodle®

Flocculation is best described as: O A way to kill pathogens in drinking water O A way to remove dissolved chemicals from water O A way to cause suspended particles to clump and sink in water O A way of filtering large particles out of drinking water

List 4 things to be considered when determining the type of irrigation system to use. a. b. c. d.

‘’Concentrated’’ sulfuric acid solution is 95% sulfuric acid by mass (and the remainder water) and has a density of 1.64 gr/mL. ( Molar mass of H2SO4= 98 gr/mol ) What is the molarity of concentrated sulfuric acid solution? a. 18 M  b. 12 M c. 16M d. 9M

The most likely route of entry for exposure to chemicals is through your nose and mouth.   true   false

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Describe the purpose of pictograms of safety in the chemistry lab. Provide examples ofcommon pictograms and explain their meanings

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A doctor has ordered for a week 0.35 grams of Carvedilol for a patient with high blood pressure. If your stock on hand consists of 25 mg tablets, how many tablets will you need for 1 day's treatment for the patient? QUESTION 13 O a. 2 O b. 14 O C. 7 O d. 20 O e. 1 QUESTION 14

How does magnesium hydroxide provide relief for indigestion? Pick from the following • Magnesium hydroxide is an acid that digests food in the stomach. • Magnesium hydroxide produces magnesium chloride salt, which neutralizes HCI. • Magnesium hydroxide reacts with HCI to produce a solution that is neutral. • Magnesium hydroxide is an acid that neutralizes HCI in the stomach.