Which of the following types of molecules would have the lowest melting point?
O A. Hydrogen-bonding molecules
O B. lonic bonded molecules
O C. Polar molecules
D. Nonpolar molecules

Explanation:

The non-polar molecules are held in place by very weak van der Waals forces, hence making it to have the least melting and boiling point.

The melting points of substances is the point at which it changes from solid to liquid, it can be very difficult to ascertain that why mostly the melting point is given as a range of values.

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.

indium, and thallium have three electrons i think