A solution contains 4.5×10^-3 HCl. Determine the following solution:
a) H3O
b) OH
c) pH

The answer is b on plato.

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.

It decreases by 4 is your answer mark brainliest