What is one difference between a mixture and a compound?

The different substances are not chemically joined together , each substance in the mixture keeps its own properties different from the elements it contains each substance is easily separated from the mixture.

Outermost (valence) electrons

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.