Van der waals forces can best be describes as attrctive or repulsive forces that are formed

One does not belong why? ice, gold ,wood ,diamond and table salt

Light waves travel than sound waves.

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