What are trances or remains of organisms that lived in the past a) mutations b) fossils c) adaptations d) traits

Answer explain why it is not possible to deduce a complete order of reactivity.

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas

Write a balanced equation showing the formation of copper (ii) nitrite from its elements