The percent composition by mass of nitrogen in nh4oh is equal to.

Find the number if 5% of it is 24% of 15.5.

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.

What are the two main purposes of edgar allen poe’s, “the masque of the red death? ”