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Chemistry Chemistry Difficulty: Medium

Unit of heat in SI system is________________? 'A'n' 'a'c'i'd' 'i's' 'a' 's'u'b's't'a'n'c'e' 'w'h'i'c'h' '1'.' 'i's' 's'o'u'r' 'i'n' 't'a's't'e'.' '2'.' 't'u'r'n's' 'r'e'd' 'l'i't'm'u's' 'p'a'p'e'r' 'i'n't'o' 'b'l'u'e'.' Which one of the following explain the shape of orbitals _________________? Which of the following statements is true/false? 1. While moving from left to right in a period, the chemical reaction of the elements first decreases and then increases. 2. Reactivity of non metals increases when moving down the group of the periodic table. The gas produced through the pouring water on the calcium carbide is