undefined ⋆ Gas asetilena (CaC_((2))) digunakan sebagai pengisi balon mainan supaya dapat terbang. Gas ini dibuat dengan mereaksikan kalsium karbida dengan air sesuai dengan persamaan reaksi berikut. CaC_((2))(s)+H_((2))O(l)→Ca(OH)_((2))(aq)+C_((2))H_((2))(g) Jika reaksi tersebut disetarakan, perbandingan koefisien reaksi. dalam reaksi tersebut berturut-turut adalah.... 1:1:1:2 2:1:1:2 2:1:1:1 1:2:1:1 1:1:2:1

<p><i>a</i> CaC₂(s) + <i>b </i>H₂O(I) —&gt; Ca(OH)_{2 &nbsp;}+<i> c</i> C₂H₂(g)</p><p>&nbsp;</p><p>Ca : a &nbsp;= 1 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;H : 2b = 2 + 2c</p><p>C : 2a = 2c &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; : 2b = 2 + 2</p><p>&nbsp; &nbsp;: 2 = 2c &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;: 2b = 4</p><p>&nbsp; &nbsp;: 1 = C &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;: b = 4/2 = 2</p><p>&nbsp;Maka a = 1 , b = 2, c = 1</p><p>CaC₂(s) + 2 H₂O(I) —&gt; Ca(OH)₂(aq) + C₂H₂(g)</p><p>Maka jawabannya d (1,2,1,1)</p>