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Compare and contrast chemical change and physical change.
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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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Silver reacts with oxygen to produce silver oxide. (write balanced chemical equation and identify type of chemical reaction.)
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What is the amount of energy for a photon that has a 125 cm wavelength
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Compare and contrast chemical change and physical change....
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