Please explain how to do this questions plz A sample of bauxite contained 68% by mass of gibbsite (Al2O3. 3H2O). Determine the mass of Al that can be extracted from every tonne of ore.

Where's the pictures ?

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.

Iimpact me by the one the yet but him.