amphoteric oxide造句

• Amphoteric oxides include lead oxide and zinc oxide, among many others.
• Germanium forms an amphoteric oxide, GeO 2 and anionic germanates, such as Mg 2 GeO 4.
• It bonds covalently in most of its compounds; has an amphoteric oxide; and can form anionic aluminates.
• Metal oxides which react with both acids as well as bases to produce salts and water are known as amphoteric oxides.
• It is the only one of the Group 13 elements to react with air at room temperature, slowly forming the amphoteric oxide Tl 2 O 3.
• Invented around 1900, Sterno is made from ethanol, methanol, water and an amphoteric oxide gelling agent, plus a dye that gives it a characteristic pink color.
• It has an unusual crystalline structure featuring mixed metallic-covalent bonding and low symmetry It bonds covalently in most of its compounds, has an amphoteric oxide; and can form anionic gallates.
• They react with amphoteric oxides : for example, the oxides of aluminium, zinc, tin, and lead react with the alkali metal hydroxides to give aluminates, zincates, stannates, and plumbates.
• Some other elements which form amphoteric oxides are gallium, indium, scandium, titanium, zirconium, vanadium, chromium, iron, cobalt, copper, silver, gold, germanium, tin, antimony, bismuth, and tellurium
• Steele notes the paradoxical chemical behaviour of aluminium : " It resembles a weak metal in its amphoteric oxide and in the covalent character of many of its compounds . . . Yet it is a highly high negative electrode potential ".
• Due to its full d-subshell, silver in its main + 1 oxidation state exhibits relatively few properties of the transition metals proper from groups 4 to 10, forming rather unstable organometallic compounds, forming linear complexes showing very low coordination numbers like 2, and forming an amphoteric oxide as well as Zintl phases like the post-transition metals.