Question

Laboratory preparations of gases from substances - applying the relevant conditions
Other examples
Gas evolved
302 [g] Oxygen
+
H2 [g] Hydrogen
Reaction of
Heat on potassium chlorate & manganese dioxide (catalyst]
2KCIO3
A 2KCI
MnO2
Zinc with dilute hydrochloric acid
Zn + 2HCI - ZnCl2[dil.]
Heat on sodium chloride & concentrated sulphuric acid
NaCl + H2SO4 - NaHSO4
(conc.)
Calcium carbonate with dilute hydrochloric acid
CaCO3 + 2HCl - CaCl + HO
(dil.) 2
Heat on sodium sulphite with dilute hydrochloric acid
Na Soz
2HC
4 2Naa
HO
(dil.)
HAI [g] Hydrogen chloride
<200°C
+
+
CO2 [g]
Carbon dioxide
+
SO2 [g] Sulphur dioxide​

Answer 1

Answer:

abe sale chutie

Explanation:

Answer 2

Answer:

not answered properly

sela monkey and donkey

sela chutiye