A zebra grazing in the savannah sees a nearby lion charging to attack and eat the zebra Which of the following is the most likely response of the zebra? Ignore the charging lion O Attack the lion O Run away from the lion O Stand tall and intimidate the lion

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

Can someone me with questions 12 and 13 plz.

The fact that the total amount of energy in a system remains constant is a(n)