If you were to stir salt in water until it disappeared, which is the solute?
a. hydrogen in the water molecules
b. sodium in the salt particles
c. water
d. salt

When a neutrally charged atom loses an electron to another atom, the result is the creation of a. two charged atoms. b. two negatively charged atoms. c. two positively charged atoms. d. two neutrally charged atoms.

Ways that industry and agriculture use physical properties to separate substances

The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?