in a chemical reaction, one or more substances are always formed
the starting substances used in a reaction are the reactants
the substances formed in a reaction are called the products
what is a word equation?
a word equation uses the name of the reactants and products to show what happens in a chemical reaction+
for example when a piece of sulfur is burned in oxygen gas it produces a white solid called sulfur dioxide. the word equation for this would be : sulfur + oxygen = sulfur dioxide
what is a symbol equation?
a symbol equation uses the formulae of the reactions and products to show what happens in a chemical reaction. a symbol equation must be balanced to give the correct ratio of reactants and products
atomic rearrangement
in a chemical reaction, atoms are rearranged. rearranged atoms receive bonds to be broken and/ or made
