How many elements are in mgbr2?

Is there a time difference between Toronto and San Antonio Texas? What would happen if stroke occured in left parietal lobe? What type of energy is involved when a river moves sediment and erodes its banks? What is 73.5 kgs in pounds? How do restriction enzymes relate to recombining DNA? What combinations of sex chromosomes produces a female? What are the layers of the body wall? What is the multicellular organisms use mitosis for growth development and? What chemical agent attack the airway and lungs? Disadvantages of oil? What is tightly wound DNA in the shape of x or y? Does orbit or revolve mean to circle around or go around? Are organisms such as algae and plants that absorb sunlight and use its energy to make food molecules using carbon dioxide and water? What rock does silt turn into? What instrument measures conductivity? What did pan GU give the Chinese people? Why is my 390 ford motor not starting and back firing? How long would it take to get from Earth to Ceres? What does this indicate about the reaction that took place in the beaker? Why did Carl Linnaeus write 'systema Naturae'?