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Explain why Cu2+ ion does not precipitate as the hydroxide when you add NH3 solution to make the solution basic. Write a chemical equation to support your explanation.
What modification occurs when a small amount of p-divinylbenzene is added to the reaction mixture during the polymerization reaction of styrene to form polystrene
Draw the lawis structure and structural formulas for CCl3F. Sketch the space-filing model and the charge-density model for this molecule.
A bottle is labeled only "Compound B (C6H12)" and contains a colorless liquid. You have been called in as an expert to identify this compound from its spectra
An ice bag containing 212g of ice at 0 °C was used to treat sore muscles. When the bag was removed, the ice had melted and the liquid water had a temperature of 32.5°C.How many kilojoules of heat were absorbed?
Draw the product of the aldol-dehydration reaction with diethylketone and p-tolualdehyde
You pass a road sign saying "New York 115 km." If you drive at a constant speed of 65 mi/h, how long should it take you to reach New York? (Round to the nearest minute.)
Grignard reagents can act as both a nucleophile and a base. Consequently, what would you expect to happen if that during the preparation of the phenylmagnesium bromide Grignard reagent
Why is it important that any aldehyde used in the writing rxn be free of carboxylic acid impurities
A pickle-packing plant produces and discharges a waste brine solution with a salinity of 13,000 mg/L NaCl, at a rate of 400 L/min, discharged into a stream with a flow rate above the discharge of 5 million L/d and a salinity of 20 mg/L
a sample of vanadium haveing 5.67 grams of mass upon heating combined with oxegen of 4.45gramsto make vanadium oxide.
Standardization of Na2S2O3, Added 0.12 g KIO3 and dissolved in 75 mL of distilled water. Added .20 g of KI to solution, then added 10 mL of 1M HCl and immediately titrated with thiosulfate solution (made by weighed 25 g of Na2S2O3-5H20
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At 0 C, the volume of the gas is 307 mL. To what temperature must the gas be heated
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