kniube najer

in lsc •  6 years ago 

(f) Catalysts are not consumed by the chemical reactions.
(g) The reaction between joule and calorie is `1J=4.18 cal.

  1. Fill in the blanks with the correct word(s) ,terms. (7 marks)
    (a) Sodium hydroxide is commercially produced from saturated solution of ………. by using electrolysis.
    (b) The properties of steel depend upon the ……….. .
    (c) Ammonia gas has a characteristic ………. smell.
    (a) Condensation is the reverse process of _____ .
    (b) All metals except _____ are solids.
    (c) A solution is a _____ mixture.
    (d) Total energy and _____ are always constant in our universe .
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