Calcium Oxide:Calcium oxide, also known as quicklime or burnt lime, is another white solid compound formed by combining calcium atoms with oxygen atoms. It has various uses including in cement production.
Oxygen Gas:Oxygen gas (O2) is a colorless and odorless gas that is essential for supporting combustion and respiration. It is also involved in many chemical reactions, including the formation of metal oxides.
Barium Sulfate: Barium sulfate is a white solid that forms when solutions of barium chloride and sodium sulfate are mixed together. It is often used in medical imaging as a contrast agent.