Food Science Ch. 7 Water

Electrons are shared equally.

• anhydrous

• bound water

• free water

• nonpolar covalent bond

Water that is tied to the structure of large molecules

like protein and starches.

• anhydrous

• bound water

• free water

• hydrogen bond

• nonpolar covalent bond

Unequal sharing of electrons.

• anhydrous

• bound water

• free water

• hydrogen bond

• polar covalent bond

Tags

NGSS.MS-PS1-1

Weak attraction between positive and negative ends of

two molecules.

• anhydrous

• bound water

• free water

• hydrogen bond

Free of water.

• anhydrous

• bound water

• free water

• hydrogen bond

The chemical formula for water is _____.

• HOHOHO

• H₂O

• H₂O₂

• H₃O

Tags

NGSS.MS-PS1-1

_____ bonds are formed within a water molecule.

• Intermolecular

• Hydrogen

• Nonpolar covalent

• Polar covalent

In a hydrogen bond, the _____.

• hydrogen of one atom is attracted to the oxygen of another

• hydrogen of one atom is attracted to the hydrogen of another

• oxygen end of the molecule is slightly positive

Which of the following is not a property of water?

• It is an excellent solvent.

• It contains weak hydrogen bonds.

• It is a nonpolar molecule.

• It has a greater surface tension than most compounds.

In which state is water most dense?

• Gas

• Liquid

• Solid

• It is equally dense in all states.