\ Combustion of magnesium to make magnesium oxide Substance Mass (grams) Magnesium ribbon 4.57 Oxygen 2.38 Magnesium oxide 6.53 In an experiment, some magnesium ribbon is weighed and its mass is recorded. It is then placed in a crucible and heated. Once hot enough, it combines with oxygen to form magnesium oxide (MgO). Observe the data table provided. Choose the most reasonable explanation as to why the product mass (MgO) does not equal the combined mass of the reactants, magnesium and oxygen. Responses A Nitrogen gas from the surrounding air snuck into the crucible.Nitrogen gas from the surrounding air snuck into the crucible. B Some of the product escaped as a vapor from the crucible.Some of the product escaped as a vapor from the crucible. C Not all of the magnesium reacted with the oxygen.Not all of the magnesium reacted with the oxygen. D Impurities were still present inside the magnesium ribbon.Impurities were still present inside the magnesium ribbon.
