Predicting Ternary lonic Compounds Find the charges (look them up on the Periodic Table or the list of polyatomic ions)
2 Put polyatomic in parenthesis
Cross the charges (simplify if needed)
Ignore formatting subscripts for now (Ex. Ca(CN)2)
(Capitalization counts!!)
What is the formula when sodium combines with carbonate?

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.

Which of these conditions most likely produces an unstable isotope?

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