GASES: LABORATORY PREPARATION, PROPERTIES, TESTS & USES.

CARBON DIOXIDE

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CALCIUM             +   HYDROCHLORIC           =           CALCIUM   +    WATER    +    CARBON
CARBONATE              ACID                                            CHLORIDE                                DIOXIDE
  (MARBLE)

CaCO₃        +        2HCl           =           CaCl₂    +    H₂O     +    CO₂

PHYSICAL PROPERTIES

1.       Colourless, odourless, tasteless gas.

2.       Slightly soluble in water.

3.       Heavier than air.

CHEMICAL PROPERTIES

1.       Does not support combustion.

2.       Forms acidic solution.

                                        TEST FOR CARBON DIOXIDE.

                                         Turns limewater milky.

Junior Science Department: Loreto College, Coleraine.