How many moles of water are in 249.6 grams of hydrated copper sulfate

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.

Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon

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