1.25 Be able to write word equations and balanced chemical equations
Word equations have just the names of the reactants and products involved:
Hydrogen + Oxygen > Water
H + O > H2O
^ 1 oxygen and 1 hydrogen on the left and on the right 2 hydrogen and 1 oxygen -> not balanced
Balanced equations are the symbols of the products and reactants including the numbers of each, there must be an equal number of each element on both sides of the equation, if there are not you can alter this by putting the right number in front of a symbol:
2H + O > H2O
^2 hydrogens and 1 oxygen on both sides
State symbols:
In balanced equations these state symbols go after a element or compound to show what state it is in
(S) solid
(L) liquid
(G) gas
(Aq) aqueous/ solid dissolved in liquid
Hydrogen + Oxygen > Water
H + O > H2O
^ 1 oxygen and 1 hydrogen on the left and on the right 2 hydrogen and 1 oxygen -> not balanced
Balanced equations are the symbols of the products and reactants including the numbers of each, there must be an equal number of each element on both sides of the equation, if there are not you can alter this by putting the right number in front of a symbol:
2H + O > H2O
^2 hydrogens and 1 oxygen on both sides
State symbols:
In balanced equations these state symbols go after a element or compound to show what state it is in
(S) solid
(L) liquid
(G) gas
(Aq) aqueous/ solid dissolved in liquid
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