Is this statement true or false? A compound is a substance made of two or more elements joined in a chemical reaction.

true

false

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false