PLZ PLZ HELP ME ASAP ITS DUE SOON AND I CANT FIGURE OUT THE ANSWERS. **I will Give brailists to the right answers ** •Cu + 4HNO3 + Cu(NO3)2 + 2NO2 + 2H20

What mass of copper is required to produce 3.2 L of NO2 gas at STP?

A)4.5 g
B)9.8 g
C) 3.1 g
D) 2.9 g

•2NaN 3 (s) 2Na(s)+3N 2 (g)

Using the balanced equation, how many grams of sodium azide ( NaN 3 ) are required to produce 3.6 L nitrogen gas (N 2 ) STP?

A)11 g
B)1.9 g
C)7.0 g
D)3.2 g