Chemistry, 02.10.2019 18:10 gracetay6873
Which of the following is not a physical property?
a) water boiling at 100°c
b) a mineral causing a white streak on another mineral
c) sodium exploding when mixed with water
d) a piece of styrofoam floating on water because it is less dense
Answers: 1
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When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)
Answers: 3
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Answers: 1
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You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices
Answers: 3
Which of the following is not a physical property?
a) water boiling at 100°c
...
a) water boiling at 100°c
...
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