(2) C, F or A, F (1 minute, if F is selected, H will not get extra points)? 2H nitrous oxide? 2H2O+O2 = (2 points)
Carbon dioxide (1)? CaCO3+2hcl = "= =" CaCl2+H2O+CO2 write (3 points)? Upward exhaust method (1 min)
Put the burning wood on the bottle mouth, and the flame will go out, which proves that the bottle is full (2 points).
(3) C, E and G( 1)
Analysis: According to the reaction principle, device, collection, filling, inspection method and distillation device of making oxygen and carbon dioxide in the laboratory, analyze and answer this question.
(1) According to the instruments commonly used in the laboratory, the names of the instruments marked ① and ② in the drawing are: beaker; Long-necked funnel; ? So the answer is: beaker; Long-necked funnel;
(2) According to the reaction principle of oxygen production in the laboratory, hydrogen peroxide solution and manganese dioxide are used to produce oxygen in a separatory funnel, so that the reaction can be controlled and a stable airflow can be obtained. The generator can choose C, F or A, F in the figure, and the chemical equation is: 2h2o 22h2o+O2 ↑;
According to the reaction principle of preparing carbon dioxide in the laboratory, it is known that the device and the reagents provided can also prepare CO 2, and the chemical equation is CaCO3+2 HCl ═ CaCl2+H2O+CO2 ↑.
Because carbon dioxide is denser than air, it can be collected by exhausting air upwards. The method of full inspection is as follows: put the burning wooden strip on the bottle mouth and extinguish the flame to prove that the bottle is full;
So choose c, f or a, f; 2H 2o 2 2H 2o+O2↑； Carbon dioxide; CaCO3 +2hcl═cacl 2+H2O+CO2↑； Upward exhaust method; Put the burning wood on the bottle mouth, the flame will go out, which proves that the bottle is full;
(3) According to the instruments required by the distillation device, it can be seen that a simple device for preparing a small amount of distilled water needs to choose A, B and C, E and G in the figure, so C, E and G are selected.