What volume of 0.50 M lithium bromide solution has the same mass of solute as 250.0 ml of a 4.5 M aluminium chloride solution ?

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 )

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

How many formula units in 2.63 mols of nacl?