Zusammenfassung der Ressource
Chemistry - C1
- Atom
- Smallest particle of
a substance which
can have its own
characterstic
properties
- Different elements
(atoms) react and
combine to form a
compound
- It's usually
difficult to
seperate them
- Atoms are held together
by a chemical bond
- Molecule
- Larger particle
formed by them
chemical combination
of two or more atoms
- Atmosphere
- 78% Nitrogen
- 21% Oxygen
- 1% Trace gases
- 0.04% Carbon dioxide
- Early Earth
- 1. It was created
by a volcanic
atmosphere
- 2. When earth
cooled the water
condensed to
form oceans and
lakes
- 3. Photosynthetic
organisms evolved in
oceans and added
oxygen to the
atmosphere and
removed carbon
dioxide
- 4. Some carbon
dioxide was
removed by
dissolving in the
oceans forming
sedimentary
rocks
- Pollutants
- Carbon Dioxide:
Environment -
Traps heat in the Earth's atmosphere
- Nitrogen Oxides:
Environment - Causes
acid rain.Humans -
Causes breathing
problems
- Sulfur Dioxide: Environment:
Causes acid rain
- Particulates: Environment
- Make buildings dirty.
Humans - Asthma can get
worse and it can cause
lung infections