When the equations Na + O2 → Na2O is balanced the coefficient for O2 is a) 1
b) 2
c) 3
d) 4

Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

Describe the magnitude of the buoyant force