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Chemistry, 21.06.2019 16:00
Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change. when the temperature in a room increases from 25°c to 33°c, changes from a solid to a liquid. in a lab, methane and nitrogen are cooled from -170°c to -200°c. the methane freezes and the nitrogen . when gold is heated to 2,856°c it changes from a liquid to a .
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Chemistry, 22.06.2019 08:30
What are the first three quantum numbers for the electrons located in subshell 2s?
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Chemistry, 23.06.2019 11:00
Which of the following reactions is endothermic? h2(g) + ½ o2(g) h2o(g), h = -57.82 kcal ½n2(g) + o2(g) + 8.1 kcal no2(g) ½ n2(g) + 3/2 h2(g) nh3(g) + 11.0 kcal c(diamond) + o2(g) co2, h = -94.50 kcal
Answers: 2
Chemistry, 23.06.2019 11:30
Which of the following is a possible formula unit? (2 points) select one: a. pbo b. li2b c. al2pb3 d. clo
Answers: 1
2 Fe(s) + 3 CuCl2(aq) --> 2 FeCl3 (aq) + 3 Cu(s) State two additional ways that the rate of react...
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