[jayjay]

Hello,

I have a question.
How can the following be classified according to: (Ionic, Polar Covalent, Non-Polar Covalent)

1) Plane Deicer- Propylene glycol
2) Table Sugar- Sucrose
3) Salt Peter- Potassium Nitrate
4) Road Deicer- Calcium Chloride
5) Aspirin- Acetylsalicylic Acid

Thank you in advance

Jay

[constant thinker]

First read this.

Second, what does it mean to be ionic, polar covalent, or non-polar covalent?

Thirdly, look at the atoms that are bonding, and the differences in electronegativity.

[Yggdrasil]

Please read the Forum Rules.  They specify that you must post your attempts to answer the question before we can help you.

But, first you can consider these questions:

How do you distinguish between ionic and covalent compounds?
How do you distinguish between polar covalent and non-polar covalent compounds?

[jayjay]

I know that ionic bond means the transfer of electrons from one atom to another and covalent the sharing of electrons.

I can figure out the ionic, non-polar covalent, and polar covalent of a substance. But the only thing I don't know is the properties that are related with each.

Example

Ionic- High melting point, Crystalline solids which are hard structure, conducts electricity.
Covalent- Low melting point, boiling point, poor electricty conductors etc.

What is the difference between polar covalent and non polar covalent in terms with the properities of each. 

I would appreciate it if you can explain to me the differences between these.

also i am pretty sure that methanol is a polar substance...is there any chance that it can be non-polar?

Thank You

[constant thinker]

This may be helpful. If your still lost just ask.

[wilson]

Just a hint: For aspirin, look at the overall molecule and the quantity of polar and non-polar bonds there. Note the -OH group and the benzene ring.