Calcium's valence shell holds two electrons. Chlorine's valence shell holds seven electrons. Which represents the ions that are bonded in calcium chloride? A.
Ca2+ + 2Cl-

B.
Ca2- + 2Cl+

C.
2Ca+ + 2Cl-

D.
Ca2+ + Cl2-

Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)