Copper(II) carbonate is broken down by heating to form copper(II) oxide and carbon dioxide gas. The equation for the reaction is shown. CuCO, → CuO + CO2 What is the percentage yield? 31.0g of copper(II) carbonate are heated until all of the contents of the test-tube have turned from green to black The yield of copper(II) oxide formed is 17.5g

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

List a abiotic factors and character

An atom holds 7 electrons. use orbital notation to model the probable location of its electrons. an atom hold 22 electrons. use orbital notation to model the probable location of its electrons. an atom holds 17 electrons. use orbital notation to model the probable location of its electrons.