Acylinder of a gas mixture used for calibration of blood gas analyzers in medical laboratories contains 5.0% co2, 12.0% o2and the remainder n2at a total pressure of 146 atm. what is the partial pressure of n2in this gas analyzer?

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.

Sorry i think the answer is b

Idon’t know what the answer is i wish i could