Which of the following situations provides evidence that a chemical change has taken place?
A. water, when boiled, evaporates, and turns into vapor
B. Sugar, when added to iced tea , dissolves into the liquid
C. Two liquids are mixed, in a solid substance formed
D. A piece of paper is cut into many small pieces
Answers: 3
Chemistry, 22.06.2019 20:00, Chynadoll94
Iam hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?
Answers: 1
Chemistry, 23.06.2019 02:30, puppylover72
Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .
Answers: 2
Which of the following situations provides evidence that a chemical change has taken place?
A. wate...
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