Question

properties of water
13 what is water made of?
h2o

1. what does polar mean?

15 which atom(s) pull electrons towards it?
16 what are the partial charges of a water molecule?
17 what type of bond is between water molecules?
18 name the properties of water

1. water dissolves many things meaning it is a good
2. if something is \water - loving\ it is called...? can it dissolve in water?

21 if something is \water - fearing\ it is called...? can it dissolve in water?

Explanation:

1. Oxygen atom has higher electronegativity and pulls electrons towards it.
2. In a water molecule, oxygen has a partial negative charge and hydrogen has partial positive charges.
3. The bond between water molecules is a hydrogen - bond.
4. Properties of water include high specific heat, cohesion, adhesion, surface tension, good solvent properties, etc.
5. Water is a good solvent as it dissolves many things.
6. Something "water - loving" is called hydrophilic and can dissolve in water.
7. Something "water - fearing" is called hydrophobic and generally cannot dissolve in water.

Answer:

1. Oxygen atom.
2. Oxygen has partial negative charge; hydrogen has partial positive charges.
3. Hydrogen - bond.
4. High specific heat, cohesion, adhesion, surface tension, good solvent properties.
5. Solvent.
6. Hydrophilic; Yes.
7. Hydrophobic; No.