What colors are copper oxide and copper respectively?

Answer 1

The color of copper oxide is black, and the color of copper is purple.

Copper(II) oxide (chemical formula CuO) is a black oxide of copper, which is slightly

Both sexes, slightly hygroscopic. The relative molecular weight is 79.545, the density is 6.3 ~ 6.9 g/cm3, and the melting point is 1026℃. Insoluble in water and ethanol, soluble in acid and chlorine

Ammonium and potassium cyanide solution, slowly dissolved in ammonia solution, can react with strong alkali. Copper oxide is mainly used to make rayon, ceramics, glaze and enamel, batteries and stone

Oil desulfurizer and insecticide are also used for hydrogen production, catalyst and green glass.

Copper is a kind of transition element, chemical symbol Cu, English copper, atomic number

29。 Pure copper is a soft metal. When the surface is just cut, it is reddish orange with metallic luster, and the simple substance is purple red. Good ductility, high thermal conductivity and electrical conductivity, therefore

Cable, electrical and electronic components are the most commonly used materials, and can also be used as building materials, which can form many kinds of alloys. Copper alloy has excellent mechanical properties and resistance

The rate is very low, among which bronze and brass are the most important ones. In addition, copper is also a durable metal, which can be recycled many times without losing its mechanical properties. Bivalent copper salt is the most

Common copper compounds, whose hydrated ions are often blue, while chlorine as ligand is green, are the source of mineral colors such as blue copper ore and turquoise, which have been widely used in history

Widely used as pigment. Copper buildings will produce verdigris (basic copper carbonate) after corrosion. Decorative arts mainly use metallic copper and pigments containing copper.

Answer 2

Copper oxide is typically black or brown in color, depending on its form. Pure copper metal is reddish-brown in color.