In which reaction is nitric acid acting as an oxidising agent ? A Cu+4HNO 3 Cu(NO 3 ) 2 +2H 2 O+2NO 2 B CuO+2HNO 3 Cu(NO 3 ) 2 +H 2 O C Na 2 CO 3 +2HNO 3 2NaNO 3 +H 2 O+CO 2 D NaOH+HNO 3 NaNO 3 +H 2 O

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

No copying 15 pts how does a free-body diagram tell you about the net force on an object?