What type of plate boundary is between the african and south american plate

What is the mass of phosphorous in a 51-kg person

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

How many moles of sulfur dioxide are in 2.26 × 10^33 sulfur dioxide molecules?