Answer:
5.15 moles
Explanation:
2zn + o2 = 2zno
5.15 2.57 5.15 moles
nzno=500/(16x2+65)= 5.15 moles
-> nzn = 5.15 x 2 ÷ 2 = 5.15 moles
0s to 15s: constant speed/zero acceleration
15s to 40s: constant gradient, therefore constant deceleration
c is the answer a benzene
Methylene chloride is less dense than water
