You have a sample of fluorine to analazy. The sample is made of of neutral Adams using the information on the diagram shown determine the number of protons neutrons and electrons for each item of your sample. Explain your answer Need this now

What is the independent variable in this investigation? mass volume sample number substance density

All forces cause motion? true or false

Awhite powder is added to a solution. the images show observations made before the powder is added, just after the powder has been added, and a little while later. (the liquid in the small beaker is phenol red solution.) what evidence shows that a chemical change has taken place?