Three chemistry student measured the volume of a sample the values recorded where 310 ml 308 ml and 315 ml what is the average volume

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

1. list three scientific reasons cockroaches may fly.

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle