an experiment done to see the effect of PH on enzymes an enzyme called pepsin responsible for digesting proteins is tested 3 tubes containing egg white and pepsin with different ph for each one are incubated than tested for biuret reagent the results was tuve A ph=4.5 tube B ph=7.5 tube C ph=3.3A

bc blah

explanation:

bc blah

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.