A chemist wants to extract copper metal from copper chloride solution. The chemist places 0.25 grams of aluminum foil in a solution of 0.40 grams of copper (II) chloride. A single replacement reaction takes place. What are the likely observations when the reaction stops? Unbalanced equation: CuCl2 + Al → AlCl3 + Cu About 0.90 grams of copper is formed, and some aluminum is left in the reaction mixture. About 0.20 grams of copper is formed, and some aluminum is left in the reaction mixture. About 0.90 grams of copper is formed, and some copper chloride is left in the reaction mixture. About 0.20 grams of copper is formed, and some copper chloride is left in the reaction mixture.
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Chemistry, 23.06.2019 05:00, xxaurorabluexx
Which of the following describes qualitative data? a) recording the temperature of a solid as it is warmed. b) noting the color of a solution as it is heated. c) measuring the volume of an object by water displacement. d) taking the mass of an object using a balance.
Answers: 2
Chemistry, 23.06.2019 05:30, jalynholden07
Based on the formulas, select the compounds below that are covalent: kbr sif4 al2o3 co2 naco3 s7o2 pcl3 fe3n2 h2o s2f10
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Chemistry, 23.06.2019 11:20, Chapo3760
Sandy is building a small toy car. he wants to use a balloon to power the toy car. he fills a balloon with air and then attaches a straw to the balloon. he tapes the balloon-straw combination to the car and then releases the end of the balloon. the toy moves forward as the air from the balloon comes out the back of the straw. what can sandy do to make the toy car move faster? a) use less air in the balloon. b) blow up the balloon more. c) use a longer straw. d) use larger tires.
Answers: 2
A chemist wants to extract copper metal from copper chloride solution. The chemist places 0.25 grams...
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