Calculations of mass (a) 5 ml of oxygen 02
b) 0.2 mol of iron Fe
(c) 20 mol of carbon
monoxide CO2

I dont know i just wrote this because i have a question too sorry

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.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.