How many molecules are in 4.50 moles of h2o?
a. 450 molecules b. 6.02 x 1023 molecules c. 2.71 x 1024 molecules d. 3.00 molecules

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

Explain that newton first law,second law and third law of motion?

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