Derivatives galore. Don't forget you might need to split the function because of the absolute value.
0.42 C * 32.14kj/1 = 13.499 KJ . . .rounded to 13.5
5g NH3 * 1 mol NH3/17 g NH3 = 0.294 mol NH3
kJ/mol = 13.5 kJ/0.294 = 45.9 kJ/Mol
hope this helps
80 min = 1 hr 20 min
1 hr 20 min after 1:57 pm is 3:17 pm.
Between 3:17 pm and 4:00 pm there are 43 minutes.
Tony has 43 minutes between the end of the project and the beginning of band practice.
You can try to solve it by hit and trial method as x and y are both natural numbers.
x = 5 and y = 2
x+y = 7
Your answer is B. because area= length × width.
