If you perform 20 joules of work lifting a 10-N box from the floor to a shelf, 3 points
how high is the shelf? (solve for d)
Work = Force • Distance
W =F:d
Answer a.10m, b.1/2,c.200m, d2m

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

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?

Salt in oceans comes from and of rocks