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Match these items.
1. electroscope leaves repel
2. charged atom
3. alignment of atoms
4. invented the lightning rod
5. carries current
6. developed the light bulb
7. wire-wrapped core
8. V = XR
9. IV

A. Magnetism
B. Ion
C. Power
D. Thomas A. Edison
E. Like charges
F. Electromagnet
G. Conductor
H. Ohm’s Law
I. Benjamin Franklin

Which statement is true about ionic compounds?

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

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