HELP ASAP, IT'S TIMED What is the total mass of products formed when 16 grams of CH4 is burned with excess oxygen? (At. Masses: C=12,H=1,O=16)CH4 + 2O2 → CO2 + 2H2 O
Select one:
a. 80 grams
b. 36 grams
c. 62 grams
d. 44 grams

iron and sleel

make siroeel

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.

the answer is na (sodium)