Calculate the enthalpy change for the reaction Fe2O3(s) + CO(g) 2FeO(s) + CO2(g) from the following: Fe2O3 (s) + 3CO(g) 2Fe(s) + 3CO2(g) H = _ 23.4kJ , FeO(s) + CO(g) Fe(s) + CO2(g) H = _ 10.9kJ.

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?

How can the periodic table be used to predict the behavior of elements?