for each of the equations, determine the change in the number of moles of gas, δgas . (nh4)2co3(s)⟶2nh3(g)+co2(g)+h2o(g)

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.

According to the article, which five aspects of mindfulness did researchers study?

Rawls says that justice sometimes requires the sacrifice of things like freedom of speech for the sake of greater economic equality. true or false