Using the reaction: Mg + O2 --> Mgo, What is the balanced equation?
If you start with 2g Mg, how many grams of
02 do you need for this reaction to go to
completion?

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work