Write symbol and ionic equations to show the reaction between magnesium and oxygen to form magnesium
oxide

In this synthesis reaction what products will form

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process