Mole Conversion - The researcher measures 6.5 moles of Magnesium Chloride (). Using balanced equation Mg + 2 HCl ---> + , how many moles of HCl were in the sample?

For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

What produces wave a)sound b) heats c)transfer of energy d)vibrations

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy