MARS ACADEMY

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This is my institute mars coaching center in porur we offer good coaching for all board exam and neet iit-jee exam with experienced faculty. 

Reaction of dilute Acid with metals: - Copper 2Cu+4HCl+O 2 (air)                         2CuCl 2 + 2H 2 O 2Cu + 2H 2 So 4 + O 2 (air)                         2Cu So 4 + 2H 2 O   3Cu + 8HNO 3                          3Cu (NO 3 ) 2 + 2NO      + 4H 2 O Chromium Cr + 2HCl                        CrCl 2 + H 2   Cr + H 2 So 4                           ...