In your own words, define the following symbols used in a pedigree: a square, a circle, an unshaded circle, a shaded square, a horizontal line, and a vertical line.
Chemical Reactions reactants products gas (g) liquid (l) solid (s) aqueous (aq) Examples: Burning methane (CH )4in oxygen produces carbon dioxide and water. CH + O CO + H O 4(g) 2(g) 2(g) 2 (g) unbalanced reaction -includes each substance but not in a particular ratio Balancing Equations Unbalanced : CH 4(g) + O 2(g) CO + H2O (g) 2(g) Balanced : CH 4(g) + 2O 2(g) CO 2(g)+ 2H 2 (g)