(c) amphoteric oxide (d) basic oxide 9. Which of the following compounds is not a double salt? (a) Zn (OH) NO3 (b) KAI (S04)2 (c) KСr (S04)2 (d)
(NH4) Fe (S04)2
. Which of the following decreases in mass on exposure to air? (a) NaOH (b) Fe (c) FeCl3 (d) Na2C03.10H20
The laboratory apparatus used in keeping salts is​

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?