August 2015  Chemistry Regents #46-50

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Other Regents Exams

Questions	Answer	Links	Explanations
	1	link	the atoms add onto the unsaturated molecule
	2	link	electrochemical cells need a battery to make it work
48 What is the volume of 0.30 M NaOH(aq) needed to completely neutralize 15.0 milliliters of 0.80 M HCl(aq)? (1) 3.6 mL     (3) 20. mL (2) 5.6 mL     (4) 40. mL	4	link	MaVa=MbVb     0.80M*15.0mL=0.30M*V
	4	link	look for the nuclear reaction with 1 reactant (the stuff to the left of the arrow)
	4	link	top # - bottom #