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Describe how the following changes are brought about: (i) Pig iron into steel. (ii) Zinc oxide into metallic zinc. (iii) Impure titanium into pure titanium.

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of carbon tetrachloride, diethylamine, pentane, acetone, and tetrahydrofuran. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density - 3 1.6 g·cm carbon tetrachloride diethylamine - 3 0.71 g·cm pentane 3 0.63 g cm 3 0.79 g cm acetone tetrahydrofuran - 3 0.89 g cm Next, the chemist measures the volume of the unknown liquid as 1.427 L and the mass of the unknown liquid as 894. g. Calculate the density of the liquid. Round 3 your answer to 3 significant digits. |lg.cm Given the data above, is it possible to identify the liquid? yes no carbon tetrachloride diethylamine If it is possible to identify the liquid, do so. pentane acetone tetrahydrofuran

(i) H3C CI (ii) HO OH

Which branch of chemistry would be the most relevant to a learner that plans on becoming a nutritionist? A physical chemistry B C D biochemistry inorganic chemistry nuclear chemistry

Which of the following alkenes is the most stable? O O The sauna premiu

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of carbon tetrachloride, diethylamine, methyl acetate, tetrahydrofuran, and acetone.   The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information:

Class Participation Q#5 CH3 Ĉ -CI Ho cholesterol oleic acid,

Calculate the cost per individual molecule of your pain reliever. Acetaminophen has the chemical formula C8H9NO2. Ibuprofen has the chemical formula C13H18O2. Paracetamol has the chemical formula C8H9NO2.

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of diethylamine, pentane, acetone, carbon tetrachloride, and tetrahydrofuran. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density g 0.71 mL diethylamine olo Ar pentane 0.63 mL g 0.79 mL acetone g 1.6 mL carbon tetrachloride g 0.89 mL tetrahydrofuran