Starting from school you bicycle 2 km north then 6km east then 2km south. what is your final position relative to the origin (two coordinates) a garbage truck takes 10 sec to go from 0km/hr-100km/hr. what is it’s acceleration an object falls for 3 seconds what is it’s speed after 3 sec (acceleration due to its gravity is 9.8 m/s) if a car is changing direction but it’s speed remains constant is it’s acceleration 0?

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false