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?.

Summarize the work of famous environmental scientists of the past.

Alex is the head photographer for the yearbook and the newspaper. she has a large staff of assistant photographers because they need to take pictures at all of the school events. she knows that some of her photographers have better cameras and can take action shots at sporting events, and that some of them are good at taking candid pictures in the hallways. she sets firm deadlines so she has enough time to look through all of the shots and choose the best ones. she gives her photographers constructive feedback to them improve their pictures. respectful enforcer warlord doormat peacemaker

The press is free to say whatever they want about whomever they want, regardless of whether they know it’s true. true false