Which of the following appliances increase CFC's in the atmosphere? (2 Points)
A. Refrigerators
B. Microwave ovens
C. Washing machines
D. Televisions

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

How many moles of oxygen react with 12 moles of aluminum

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.