Pyrite is a mineral which is made from iron and sulfur atoms. Choose all of the statements which are correct. A. The smallest unit of pyrite is a sulfur or iron atom.

B. The smallest unit of pyrite is a molecule containing iron and sulfur.

C. All of the above

D. The element called sulfur is made of sulfur atoms.

(Be quick and pick more than one answer)

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

How does a large body of water, such as the ocean, influence climate?

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of