Calculate [OH - ] given [H 3 O + ]=1.40x10 -5 M.

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.

Ithink about 50 % of an original isotope's number of atoms remain

Answer/when the cell uses energy;