Chemistry, 09.11.2020 21:00 randlemccray1907

A pupil heated 1.24 g of copper carbonate strongly. The chemical reaction which took place is represented by the equation:

CuCO3(s) → CuO(s) + CO2(g)

He then heated the 0.80 g of solid again. When he weighed it after cooling, its
mass was still 0.80 g. Explain why it had not changed in mass this time.

After the solid which remained had cooled, he weighed it.

He found that its mass was 0.80 g.

(i) Why did the pupil find a decrease in mass in this experiment?

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 21:00, cody6187

Rays from the sun are not considered matter true or false

Answers: 2

continue

Chemistry, 23.06.2019 00:20, cmflores3245

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound

Answers: 3

continue

Chemistry, 23.06.2019 04:40, laurabwhiddon

Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?

Answers: 1

continue

Chemistry, 23.06.2019 06:30, fshane7705

The velocity of any object depends upon a) the location of the object. b) the location of the observer. c) which measurement tools are used. d) the relative motion of the observer.

Answers: 1

continue

You know the right answer?

A pupil heated 1.24 g of copper carbonate strongly. The chemical reaction which took place is repre...