What should Jorge do? He should order online and pay the cheaper cost for
the sander
He should try to fix the sander he already has.
He should buy the sander in the store and pay more.
He should turn down the job.

Use examples from the article to explain one positive and one negative effect that chemistry has had on society

What is the formula that this ionic compounds could form sr2+p3-o2-

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