54. write a formula for the ionic compound that forms from
each pair of elements.
(a) aluminum and oxygen
(b) beryllium and iodine
(c) calcium and sulfur
(d) calcium and iodine
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What three natural resources are found in the great lakes region

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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