C3.1 Flashcards
1
Q
law of conservation of mass
A
atoms cannot be created or destroyed by chemical reactions
the same atoms are present at the start and end of a reaction
they are just joined in a different way
2
Q
word equation
A
simple model for a chemical reaction
shows names of the reactants and products involved
3
Q
balanced equation
A
shows how atoms are rearranged in a reaction
shows the relative amounts of each substance involved
