Compounds and Equations Ch1 / L5 Flashcards
What information does chemical formulae give
The ratio of the elements in the compound
How can the chemical formula of an ionic compound be deduced
Crossing over rule
What do chemical equations show
They show the rearrangment of atoms as reactants become products in a reaction
What are the four state symbols
S - solid
L - liquid
G - gas
Aq - aqueous
What does the Law of Conservation of Mass state
Mass is neither created or destroyed during chemical reactions so total mass reactants = total mass products
Why must molecular equations be balanced
To properly represent the reaction occuring and the actual rearrangment of atoms
What are ionic equations
An ionic equation shows only the ions or other particles taking part in a reaction and not the spectator ions
What are spectator ions
Ions that are present during an aqueous ionic reaction but do not take part in the reaction themselves
