Construct the ch3oh molecule and describe its polarity

Explanations:- In methanol, carbon is the central atom with four valence electrons to which three H and one O atoms are bonded via single covalent bonds. Oxygen has 6 valence electrons so it forms a single covalent bond with carbon and another single bond with the fourth H atom to complete it's octet.

Electron negativity difference of C and H is very low and so C-h bond is not like a polar bond.

O is more electron negative than H and C and so the C-O and O-H bonds are polar covalent bonds. So, the over all molecule is polar because of these polar C-O and O-H bonds.

Hydrogen bonding is also possible for this molecule as H is bonded to the more electron negative oxygen atom.

The structure is attached below:

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.