3. A cylinder is weighed empty and with a liquid.
Cylinder with liquid 51.85 g
Cylinder, empty 40.11 g
Volume of liquid in cylinder 7.0 mL
What is the density of the liquid?
a) 13 g/mL c) 5.7 g/mL
b) 7.4 g/mL d) 1.7 g/mL
Which one of the following is the correct formula for aluminum oxide?
a) AIO c) A1203
b) A1606 d A1302
What is the name of the compound CF4?
fluorocarbonate
carbon tetrafluoride
tricarbo fluoride
carbon difluorate

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.

What type of reaction fuels the processes seen here?

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)