Bonjour, excusez moi de vous déranger. on m’a donné trois exercices à faire en physique chimie mais je ne comprends pas cette exercice si quelqu’un pourrait m’aider ou me guider je vous en remercie ,merci d’avance de votre attention.

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

Need on both questionswill markbr />

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!