Which material has a crystalline structure at room temperature ( 20 degrees celsius )
1. water...
Chemistry, 27.01.2020 08:31, quintonps12
Which material has a crystalline structure at room temperature ( 20 degrees celsius )
1. water
2. glass
3. nitrogen
4. sucrose
Answers: 3
Chemistry, 22.06.2019 00:30, natalie1755
Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1
Answers: 3
Chemistry, 22.06.2019 02:00, hemolelekeakua
The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
Answers: 3
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Chemistry, 23.06.2019 18:40, adibakawsar
Sound does not need a medium to travel is reflected when it bounces off a shiny surface is created by electric and magnetic fields moves in longitudinal waves
Answers: 1
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