I Think OldCurmudgeon and StaxMan are equally right but here is just one sentence response with basic illustration to suit your needs. 外觀 資助維基百科 建立帳號 登入 個人工具 資助維基百科 Take note: See that I've described the oxide ion as staying solid. Metallic oxides are reliable and many are insoluble in water. https://propertyingurugram.in/residential/meffier-golden-park-sector-4-sohna/