Metallic magnesium reacts with steam to produce magnesium hydroxide and hydrogen gas. a. If 16.2 g Mg are heated with 12.0 g H2O, what is the limiting reactant? b. How many moles of the excess reactant are left? c. How many grams of each product are formed?

0.334 mol

Explanation:

What is the limiting reactant when 16.2 g Mg is heated with 12.0 g H2O? Magnesium hydroxide and hydrogen gas are produced when metallic magnesium interacts with steam. How many moles of surplus reactant remain after 16.2 g Mg is heated with 12.0 g H2O? There is still 0.334 mol of surplus reactant.

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.