Why is it important to have a large sample size in any experiment?

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

Which statement describes james chadwick’s discovery.

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