How many grams in 4.53 moles of MgBr2

Which form of relativism states that people rely on their own standards of right and wrong when making a decision?

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?