A 0. 500 g sample of an impure iron ore is converted entirely into fe2+, which is then titrated with kmno4 (source of mno4- ions) in the following reaction: 5fe2+ + mno4- + 8h+ → 5fe3+ + mn2+ + 4h2o it requires 32. 0 ml of 0. 0200 m kmno4 to react completely with all the fe2+ in the solution. What is the percent by mass of iron in the ore?.

Anna’s mother prepares sauerkraut, a fermented dish made from finely cut cabbage and salt. lactobacillus bacteria present on the surface of the cabbage combine with salt to turn the cabbage into a crunchy, sour dish. what chemical process occurs to create this dish? a. alcoholic fermentation b. cellular respiration c. conservation d. lactic acid fermentation e. photosynthesis

Registrars maintain high a. standardized tests b. faculty payrolls c. transcripts d. sporting facilities

Healing after the death of a loved one is most difficult when: a) the bereaved is not allowed to mourn in the way he or she wishes b) the death is a long, protracted one c.) a period of grief has already elapsed d) no other mourners are present