Question

1. please indicate whether the statements below are true or false. please correct any false statements.

a. water molecules can attract other water molecules by hydrogen bonding.
t / f
b. hydrogen bonds are stronger than ionic or covalent bonds.
t / f
c. the majority of our cellular reactions occur in water.
t / f
d. large lakes and oceans tend to moderate local temperatures.
t / f
e. water is an organic molecule.
t / f

1. what happens in the human body when excessive water is consumed? (research)

Explanation:

• a. Water molecules can attract other water molecules by hydrogen bonding. This is due to the polar nature of water molecules, where the oxygen atom has a partial negative charge and the hydrogen atoms have partial positive charges. Opposite charges attract, forming hydrogen bonds between water molecules. So, this statement is True.
• b. Hydrogen bonds are weaker than ionic or covalent bonds. Ionic bonds involve the transfer of electrons and result in strong electrostatic attractions between ions. Covalent bonds involve the sharing of electrons and form stable molecular structures. Hydrogen bonds are just dipole - dipole interactions (a type of van der Waals force) and are relatively weak. So, this statement is False.
• c. The majority of cellular reactions occur in water. Water is the solvent in which most biochemical reactions take place. It helps in the transport of reactants and products within and between cells. So, this statement is True.
• d. Large lakes and oceans tend to moderate local temperatures. Water has a high specific heat capacity. It can absorb or release a large amount of heat without a significant change in its own temperature. This property helps in regulating the temperature of the surrounding areas (coastal regions, for example). So, this statement is True.
• e. Water is an inorganic molecule. Organic molecules typically contain carbon - hydrogen bonds (e.g., hydrocarbons, carbohydrates, proteins). Water (\(H_2O\)) does not have carbon - hydrogen bonds. So, this statement is False.

Answer:

a. True, b. False, c. True, d. True, e. False