What else could you incorporate into this experiment to verify that the gas is responsible for the color change? design an experiment that shows the steps required?

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 )

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

What is the mass of sodium in 3 moles of sodium chloride