![55. Balance the following chemical equations : (a) FeS + HCl → FeCl, + H,S (b) Na, CO, + HCl NaCl + H,O+CO, (c) H, +0, 21,0 (d) Na,O + H2O → 55. Balance the following chemical equations : (a) FeS + HCl → FeCl, + H,S (b) Na, CO, + HCl NaCl + H,O+CO, (c) H, +0, 21,0 (d) Na,O + H2O →](https://toppr-doubts-media.s3.amazonaws.com/images/9985260/67e9778d-e61e-407b-bf88-ffdfb94e6b39.jpg)
55. Balance the following chemical equations : (a) FeS + HCl → FeCl, + H,S (b) Na, CO, + HCl NaCl + H,O+CO, (c) H, +0, 21,0 (d) Na,O + H2O →
![Class B brass pan balance and 4 weights made by H. Sutcliffe and Co. | Science Museum Group Collection Class B brass pan balance and 4 weights made by H. Sutcliffe and Co. | Science Museum Group Collection](https://coimages.sciencemuseumgroup.org.uk/images/236/440/medium_cd0188_009_051031_CS1_1993_242_Brass_Scales.jpg)
Class B brass pan balance and 4 weights made by H. Sutcliffe and Co. | Science Museum Group Collection
![Class B brass pan balance and 4 weights made by H. Sutcliffe and Co. | Science Museum Group Collection Class B brass pan balance and 4 weights made by H. Sutcliffe and Co. | Science Museum Group Collection](https://coimages.sciencemuseumgroup.org.uk/images/475/767/medium_SMG00244504.jpg)
Class B brass pan balance and 4 weights made by H. Sutcliffe and Co. | Science Museum Group Collection
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![Worked example: Balancing a redox equation in acidic solution | AP Chemistry | Khan Academy - YouTube Worked example: Balancing a redox equation in acidic solution | AP Chemistry | Khan Academy - YouTube](https://i.ytimg.com/vi/4tLrbMstfm8/sddefault.jpg)