water chemistry mrs. wisher. what is chemistry? chemistry is the study of the properties of matter...
DESCRIPTION
Chemistry of Water Elements are made up of atoms Compounds & mixtures are made up of elements combined together Examples NH 4 CO 2 H 2 O!TRANSCRIPT
Water ChemistryMrs. Wisher
What is Chemistry?
Chemistry is the study of the properties of matter and how matter changes
Matter – the stuff that makes up everything in the universe
Chemistry of Water
Elements are made up of atoms
Compounds & mixtures are made up of elements combined together
Examples NH4 CO2 H2O!
Chemistry of Water
Water or H2O is a compound A chemical compound of 2
hydrogen atoms & one oxygen atom
The most abundant chemical compound on Earth
Covers 70% of the Earth’s surface
A water molecule can spend 3,200 years in the ocean before going through the water cycle and up to 10,000 years in deep-underground caves.
Physical Changes
Water changing it’s state is a physical change
This is a vital part of the water cycle
What are the different ways that the water cycle changes it’s state? Evaporation Condensation Precipitation Sublimation
Water as a Solid
Water exists as ice below 00 C
This is the freezing point The molecules of H20
are in a fixed position yet vibrate
As the molecules are heated they vibrate more rapidly
Water as a Liquid
As the temperature of the water molecules heat up, they begin to vibrate quickly
In a liquid phase, the molecules have a little room to slip past each other but are still fixed
Water as a Gas
When the temperature of water rises to 1000 C, the molecules move around more freely
We call this the boiling point
The water molecules escape the liquid state and turn into a gas