Explain this to me work would be awesome you!

f. 2:2:2:1

Explanation: The balanced equation is:

2Li + 2H2O => 2LiOH + H2

the number of atoms on the reactant and product side are equal.

This type of reaction is a single displacement where Li displaces H atoms in the product side.

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.

answer carbon and three oxygen atoms;