Chemistry, 06.10.2019 07:30 Juancr4539
Label each as an endothermic or exothermic reaction or process. a. liquid freezing b. solid melting c. liquid turning into gas d. gas cooling and condensing on the side of a glass e. 2 chemicals mixed together in a beaker and now the beaker feels warm to the touch
Answers: 1
Chemistry, 22.06.2019 08:00, wizz4865
Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next
Answers: 2
Chemistry, 23.06.2019 13:30, katswindle11
Asap at one point in history people could measure temperature by looking at the volume of a sample of gas. suppose a sample in a gas thermometer has a volume of 135ml at 11.0°c. indicate what temperature would correspond to each of the following volumes: 113 ml, and 155 ml.
Answers: 1
Label each as an endothermic or exothermic reaction or process. a. liquid freezing b. solid melting...
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