균형 맞추기. CaC2 + H2O → Ca(OH)2 + C2H2

균형 맞추기. CaC2 + H2O → Ca(OH)2 + C2H2

CaC2(s) + H2O(l) → Ca(OH)2(s) + C2H2(g)

 

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▶ 참고: 미정계수법 [ https://ywpop.tistory.com/3902 ]

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aCaC2 + bH2O → cCa(OH)2 + dC2H2

 

 

Ca: a = c ... (1)

C: 2a = 2d ... (2)

H: 2b = 2c + 2d ... (3)

O: b = 2c ... (4)

 

 

a = 1 이라 두면,

from (1), c = 1

 

from (2), d = 1

 

from (4), b = 2

 

 

답: CaC2 + 2H2O → Ca(OH)2 + C2H2

CaC2(s) + 2H2O(l) → Ca(OH)2(s) + C2H2(g)

 

 

 

[ 관련 글 https://ywpop.tistory.com/13050 ] 금속탄화물과 물의 반응식