CHEMISTRY OF THE ENVIRONMENT: WATER

what percent of the Earth’s surface is covered with water

• 71%

• 90%

• 45%

• 68%

hold about 96.5 percent of all Earth’s water.

• oceans

• seas

• land water

• fresh water

describes how water moves through the environment in a continuous process. It begins with the evaporation of water from oceans, lakes, rivers, and soil into the atmosphere.

• water cycle

• water distribution

• water transfer

• rain

are formed as the water vapor rises, cools and condensed.

• clouds

• rain

• water vapor

• fog

occurs in the form of rain, snow, sleet, or hail when the clouds become heavy with moisture.

• precepitation

• storm

• natural disaster

• typhoon

Plants also absorb water through their roots and release it into the atmosphere through a process called -----------.

 

• transpiration

• precipitation

• distribution

• ionization

remarkable substance, and its chemistry is quite fascinating! Its molecular formula is H2O, consisting of two hydrogen atoms and one oxygen atom.

 

• water

• mercury

• oxygen

• carbon

The shape of a water molecule is bent or V-shaped due to the arrangement of its atoms.

• molecular structure

• bonding

• ionization

• fluidity

is slightly negatively charged. This polarity gives rise to water’s unique properties

• oxygen atom

• carbon atom

• hydrogen atom

• nitrogen atom

are slightly positively charged. This polarity gives rise to water’s unique properties

• hydrogen atoms

• oxygen atoms

• nitrogen atoms

• carbon atoms