Which formula can be used to calculate the molar mass of hydrogen peroxide (H2O2)? (5 points) Select one:
a. molar mass of H + molar mass of O
b.2 x molar mass of H + molar mass of O
c. molar mass of H + 2 x molar mass of O Incorrect
d.2 x molar mass of H + 2 x molar mass of O

option d (2×molar mass of H +2×molar mass of O

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

there is none because earth is stationary and flat.