Chemistry, 29.11.2019 03:31 carolyvillanueva
Astudent performed flame tests on several unknown substances and observed that all of the flame colors were shades of red. what could the student do to correctly identify these substances? explain your answer.
Answers: 3
Chemistry, 22.06.2019 15:20
Which description best characterizes the motion of particles in a solid?
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Chemistry, 23.06.2019 02:00
Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.
Answers: 2
Chemistry, 23.06.2019 06:10
How much would the freezing point of water decrease if 4 mol of nacl were added to 1 kg of water (kf=1.86 degrees c/(mol/kg) for water and i=2 for nacl a- 7.44 degrees c b- 14.88 c 3.72 d 1.86
Answers: 1
Astudent performed flame tests on several unknown substances and observed that all of the flame colo...
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