ILL MARK YOU BRAINLIEST AND GIVE YOU 15 POINTS Based on the kinetic molecular theory, which of the following statements is correct about the particles in a sample of gas? (5 points)

a
They have negligible kinetic energy.

b
There is negligible force of attraction between them.

c
The space between them decreases with increase in temperature.

d
Their average kinetic energy decreases with increase in temperature.

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .