How many moles of oxygen atoms do 1.5 moles of co2 contain?

Alarge marble is dropped in a graduated cylinder with 35ml of water in it.the water level increases to 49ml.what is the volume of the marble

What information does a complete ionic equation give that the balanced equation doesn’t show?

Rank the four gases (air, exhaled air, gas produced from from decomposition of h2o2, gas from decomposition of nahco3) in order of increasing concentration of co2