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
Another question on Chemistry
Chemistry, 21.06.2019 17:30
Which uses electromagnetic radiation to discover the properties and composition of bodies in space? space probe space station space shuttle space observatory
Answers: 2
Chemistry, 22.06.2019 16:00
The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
Answers: 1
Chemistry, 22.06.2019 19:30
How might this scientific phenomena be explained? a paper clip floats on water.
Answers: 1
Chemistry, 22.06.2019 21:30
How many liters of 3.0 m naoh solution will react with 0.60 liters of 4.0 m h2so4? h2so4 + naoh → na2so4 + h2o 1.2 l 1.6 l 2.4 l 2.8 l
Answers: 3
You know the right answer?
A pupil heated 1.24 g of copper carbonate strongly. The chemical reaction which
took place is repre...
Questions
Mathematics, 22.10.2019 21:20
History, 22.10.2019 21:20
Mathematics, 22.10.2019 21:20
Mathematics, 22.10.2019 21:20
Mathematics, 22.10.2019 21:20
Mathematics, 22.10.2019 21:20
Social Studies, 22.10.2019 21:20
History, 22.10.2019 21:20
Mathematics, 22.10.2019 21:20
