determine the percent yield of a reaction that produces 28.65 g of fe when 50.00 g of fe2o3 react with excess al according to the following reaction.

Which characteristic demonstrates a healthy self-esteem? accepts others does not listen well seeks constant approval frustrates easily

Given: m∠apc = 27°, m dc = 27° find: m ab

Which statements about the two fossil images are correct? 1. cave bears are ancestors of plateosaurus. 2. plateosaurus were present on earth before ostracoderms. 3. ostracoderms were the first to die. 4. plateosaurus died after the ostracoderms. 5. cave bears are the oldest fossils.