A student, Ken, is given a mixture containing two carbonate compounds . The mixture includes MgCO3 and (NH4)2CO3 . The mixture is 64.16% CO3 is by mass. What is the mass percent of MgCO3 in the mixture?

100%sorry if i’m wronghope this good luck: )

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.