The rate of diffusion of methane gas, CH4, is four times the rate of diffusion of an unknown gas under the same conditions of temperature and pressure. What is the molar mass of the unknown gas

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 )

What’s the scientific notation for the number 6,840,000,000

How do scientists think that gravity affected the formation of our solar system?