In the reaction, Ca 2H2O = Ca(OH)2 H2 ; what volume (c.c.) of hydrogen – McqOptions

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1.	In the reaction, Ca 2H2O = Ca(OH)2 H2 ; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water ? (atomic weight of calcium = 40)
A.	2240
B.	4480
C.	0.4
D.	1120
Answer» C. 0.4

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