If 8.28 x 1023 molecules of a substance have a mass of 11.61 g, what is the molar mass of the substance?
___g/mol

Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?

Sugar is dissolved in water. which is the solute? sugar neither both water

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate