A 5.57 ballon has a pressure of 7.5 atm at 325.How many moles of gas are present

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

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