When the equation is balanced, what is the coefficient for pure aluminum (al)

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Select the correct answer from each drop-down menu. to make a table of the elements, dmitri mendeleev sorted the elements according to their . he then split the list of elements into several columns so that elements beside each other had similar .