BIOCHEMISTRY
PROPERTIES OF WATER
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
compounds that have polar covalent bonds
|
|
|
oils
|
|
|
oxygen gas (O2 molecules)
|
|
|
Chloride ions
|
|
|
any compound that is not soluble in water
|
Detailed explanation-1: -Hydrogen bonding makes water an excellent solvent. Water is an excellent solvent because its polar water molecules form hydrogen bonds with ions and polar molecules, allowing ionic and polar covalent compounds to disperse easily in water.
Detailed explanation-2: -Water molecules can only form hydrogen bonds between the partially positively charged hydrogen atoms in a water molecule and a partially negatively charged atom in another molecule. This means that hydrogen bonds can only form between atoms in polar covalent bonds.
Detailed explanation-3: -Water (H2O), like hydrogen fluoride (HF), is a polar covalent molecule. When you look at a diagram of water (see Fig. 3-2), you can see that the two hydrogen atoms are not evenly distributed around the oxygen atom.
Detailed explanation-4: -The two hydrogen atoms and one oxygen atom within water molecules (H2O) form polar covalent bonds.