Many people believe that a large earthquake , often referred to as the Big One , will hit California within the next 100 years . Due to a lack of understanding about the Earth's plates , some wrongly believe that the Big One " will cause California to break off the continent and fall into the Pacific Ocean . Others fear that the transform boundary running through California will open up and the Earth will swallow buildings , people , and cars . Why are these people wrong ?

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .