A beaker was weighed empty (53.22 grams) and a mixture of ammonium chloride and sand was added. The beaker was reweighed (58.37 grams). The mixture was then heated over a bunsen burner until all of the ammonium chloride sublimed. The beaker was weighed again (56.75 grams). What was the mass of ammonium chloride in the mixture

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.

Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal