Nitrogen and oxygen can be obtained from air. Why does the air need to be cooled before the start of the process?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next