In the reaction of nitrogen gas, n2, with hydrogen gas, h2, to form ammonia gas, nh3 , how many moles of hydrogen are needed to react with two moles of nitrogen?

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

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

Which material burns faster? metal aluminum