A. Consulte y describa tres clases de reacciones químicas que se dan en los seres vivos b. Consulte tres reacciones químicas que se den en el ambiente y sean agentes contaminantes.

Which of these sequences lists the correct order for the creation of sedimentary rock from sediment? a. deposition, burial, compaction, cementation b. burial, deposition, compaction, cementation c. compaction, deposition, burial, cementation d. cementation, deposition, burial, compaction

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

1. list three scientific reasons cockroaches may fly.