Chemistry, 10.10.2019 00:00 sandlobster3129
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a piece of potato of initial mass 25 g was placed in water. after 15 minutes its final mass was 50 g.
calculate the percentage gain in mass of the potato.
Answers: 1
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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
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a piece of potato of initial mass 25 g was placed in water. after 15 minutes its final mass...
a piece of potato of initial mass 25 g was placed in water. after 15 minutes its final mass...
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