The independent variable is the only factor that a scientist varies for different groups in an experiment. measures in an experiment. keeps constant for each group in an experiment. records throughout an experiment.

Why is permeable soil best for plants that need a lot of drainage?

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Acompound has the molecular formula c3h8. which class of organic compounds does it belong to?