Arrange the following in order from least to greatest number of moles of that substance: 12.01g carbon, 7.2 x1023 calcium atoms, 129 magnesium, 649 02.
A. 129 magnesium, 12.01g carbon , 7.2 x1023 calcium atoms, 649 02.
B. 649 02, 7.2 x1023 calcium atoms, 12.01g carbon, 12g magnesium.
C. 7.2 x1023 calcium atoms, 12g magnesium, 12.019 carbon, 649 02.
D. 12.01g carbon , 7.2 x1023 calcium atoms, 129 magnesium, 64 g 02.

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