Which of the following mass measurements has 3 significant figures? O 13.30 g
O 13.3 g
O 13.3 mL
O 0.013 kg

Calculate the number of molecules present in 0.750 mol of mgo.

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.