20.0 mL of 0.200 M diprotic acid (H2A) was titrated with 0.100 M KOH. The acid ionization constants for the acid are Ka1=5.2×10−5 and Ka2=3.4×10−10. A. What species is/are significantly present at the first midway point? B. What species is/are significantly present at the second equivalence point? C. What volume of KOH is needed to reach the second equivalence point?

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 shows that the experiment is designed properly.

Use a magnet to separate iron, evaporate water, i'm not sure how to separate the other two i'm sorry but good luck