This lesson contains 20 slides, with interactive quizzes and text slides.
Atoms are representated by an elementsymbol.
Molecules of these atoms consists of two atoms.
Atoms can be combined to molecules
CO2
Moleculedrawing
More molecules are represented by the coëfficiënt. This amount stands in front of the formula.
coëfficiënt 5
so 5CO2
How many molecules and atoms in the following formulas:
O2
H2O
4CH4