Could someone help with question 2 please
...
Answers: 3
Chemistry, 20.06.2019 18:04
Can anyone (a-level) a student was analysing a carbonate compound, mco3, containing an unknown group 2 metal, m. the student carried out thermal decomposition on 0.730g of the carbonate and measured the volume of gas produced. mco3 (s) mo (s) + co2 (g) the student collected and measured 120cm3 of carbon dioxide. 1 mol of carbon dioxide occupies 24 000 cm3 under these conditions. calculate the molar mass of the group 2 carbonate and hence deduce the identity of the group 2 metal, m.
Answers: 3
Chemistry, 21.06.2019 22:10
What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance
Answers: 2
Chemistry, 22.06.2019 05:00
Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted
Answers: 1
Chemistry, 23.06.2019 12:40
During an experiment, ice and water were placed in a perfectly insulated thermos flask at 0 °c. describe this system when it phase reaches equilibrium.
Answers: 1
Geography, 05.04.2021 21:00
Social Studies, 05.04.2021 21:00
Chemistry, 05.04.2021 21:00
Mathematics, 05.04.2021 21:00
History, 05.04.2021 21:00
Mathematics, 05.04.2021 21:00
English, 05.04.2021 21:00
Mathematics, 05.04.2021 21:00
English, 05.04.2021 21:00
Mathematics, 05.04.2021 21:00