Scientists classify rocks into three different types. what is the main for basis for the classification system they chose?

Apush or pull that moves or changes and object when to objects touch

If a particle has z = 25 and 23 electrons, what is its charge?

Examine the false statement. compounds are the smallest unit of an element that occur most commonly in nature. select the rewording of the statement that is true. a: atoms are the smallest unit of an element that commonly occur in nature. b: molecules are the smallest unit of an element or compound that commonly occur in nature. c: molecules are the smallest unit of a compound that occur on the periodic table. d: compounds are the smallest unit of an element that occur on the periodic table