All About Kimia

Privacy Policy

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Privacy Policy for All About Kimia</h3>
If you require any more information or have any questions about our privacy policy, please feel free to contact us by email at <a href="mailto:hajid.zafran@gmail.com">http://blogkimiakita.blogspot.co.id/2016/03/kontak_5.html</a>. 
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 Update This Privacy Policy was last updated on: Saturday, March 19th, 2016. 
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Privacy Policy for All About Kimia If you require any more information or have any questions about our privacy policy, please feel free t...

Persamaan Reaksi

<div dir="ltr" style="text-align: left;" trbidi="on">Pengertian 
<div class="MsoNormal">Reaksi Kimia mengubah zat zat asal ( pereaksi atau reaktan) menjadi zat-zat baru ( hasil reaksi).</div><div class="MsoNormal">Persamaan Reaksi adalah Persamaan yang menunjukkan hubungan antara zat-zat yang terjadi selama reaksi kimia berlangsung.</div><div class="MsoNormal"> 
</div><div class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-rKHMFCPI-vM/Vupfb3SqmRI/AAAAAAAAAgI/zhuKknPgWc8jVH8kpm_3IjB77KkM40UFQ/s1600/persamaanreaksi.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="152" src="https://1.bp.blogspot.com/-rKHMFCPI-vM/Vupfb3SqmRI/AAAAAAAAAgI/zhuKknPgWc8jVH8kpm_3IjB77KkM40UFQ/s320/persamaanreaksi.png" width="320" /></a></div>alt='Persamaan Reaksi' title='Persamaan Reaksi'/> 
<div class="separator" style="clear: both; text-align: center;"> 
</div><div class="MsoNormal"> 
</div><div class="MsoNormal">Tanda  tambah(+) menunjukkan sebagai “bereaksi dengan”.Tanda sama dengan (=) menunjukkan hasil reaksi, dan dapat dibaca sebagai “menghasilkan”, “membentuk” , “bereaksi menjadi” atau istilah lainnya. Bilangan di depan rumus kimia masing masing zat dalam persamaan reaksi disebut koefisien. Koefisien satu ( tidak perlu ditulis), huruf cetak miring dalam tanda kurung yang mengikuti rumus kimia tiap-tiap zat menyatakan wujud atau keadaan zat yang bersangkutan, yaitu:</div><div class="MsoListParagraphCxSpFirst" style="mso-list: l0 level1 lfo1; text-indent: -18.0pt;">·              s               = Padatan ( Solid)</div><div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -18.0pt;">·              l               = cairan (liquid)</div><div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -18.0pt;">·             g               = gas</div><div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -18.0pt;">·           aq            = larutan berair (aqueous, zat dalam air)</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpLast"> 
</div><div class="MsoNormal">Beberapa hal yang perlu diperhatikan dalam persamaan kimia sebagai berikut.</div><div class="MsoListParagraphCxSpFirst" style="mso-list: l1 level1 lfo2; text-indent: -18.0pt;">      a.       Koefisien reaksi menyatakan perbandingan jumlah partikel dari zat-zat yang terlibat dalam reaksi</div><div class="MsoListParagraphCxSpMiddle" style="mso-list: l1 level1 lfo2; text-indent: -18.0pt;">      b.      Karena koefisien reaksi merupakan angka perbandingan, maka koefisien reaksi haruslah bilangan bulat   paling sederhana</div><div class="MsoListParagraphCxSpLast" style="mso-list: l1 level1 lfo2; text-indent: -18.0pt;">      c.       Persamaan reaksi yang sudah diberi koefisien yang sesuai disebut persamaan setara. 
             Untuk lebih jelasnya baca artikel berikut <a href="http://blogkimiakita.blogspot.co.id/2016/03/carasoal-serta-jawaban-persamaan-reaksi.html">Cara,Contoh Soal, dan Pembahasan Reaksi Kimia </a></div><div class="MsoListParagraphCxSpLast" style="mso-list: l1 level1 lfo2; text-indent: -18.0pt;">                                          Cukup Sekian, Semoga Bermanfaaat!!</div><div class="MsoListParagraphCxSpLast" style="mso-list: l1 level1 lfo2; text-indent: -18.0pt;">l</div></div>

Pengertian Reaksi Kimia mengubah zat zat asal ( pereaksi atau reaktan) menjadi zat-zat baru ( hasil reaksi). Persamaan Reaksi adalah Persam...

Cara,Contoh Soal, dan Pembahasan dari Persamaan Reaksi

<div dir="ltr" style="text-align: left;" trbidi="on"><h2 class="separator" style="clear: both; text-align: center;"><a href="https://1.bp.blogspot.com/-rKHMFCPI-vM/Vupfb3SqmRI/AAAAAAAAAgI/zhuKknPgWc8jVH8kpm_3IjB77KkM40UFQ/s1600/persamaanreaksi.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;">Cara,Contoh Soal, dan Pembahasan dari Persamaan Reaksi</a></h2><div class="separator" style="clear: both; text-align: left;">Kali ini kami akan membahas tentang cara contoh dan pembahasan dari persamaan reaksi.</div><div class="separator" style="clear: both; text-align: left;">Silahkan membaca. </div><a href="https://1.bp.blogspot.com/-rKHMFCPI-vM/Vupfb3SqmRI/AAAAAAAAAgI/zhuKknPgWc8jVH8kpm_3IjB77KkM40UFQ/s1600/persamaanreaksi.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="Persamaan Reaksi" border="0" src="https://1.bp.blogspot.com/-rKHMFCPI-vM/Vupfb3SqmRI/AAAAAAAAAgI/zhuKknPgWc8jVH8kpm_3IjB77KkM40UFQ/s1600/persamaanreaksi.png" title="Persamaan Reaksi"/> /></a> 
<div class="MsoNormal" style="line-height: normal;">Sebelum membaca artikel ini , sebaiknya bacalah terlebih dahulu artikel ini <a href="http://blogkimiakita.blogspot.co.id/2016/03/persamaan-reaksi.html">Persamaan Reaksi</a><a href="http://blogkimiakita.blogspot.co.id/2016/03/persamaan-reaksi.html"></a> 
Penyetaraan persamaan reaksi dimaksudkan untuk menyamakan jenis dan jumlah atom di ruas kiri dengan ruas kanan. Banyak reaksi yang dapat disetarakan dengan cara menebak, akan tetapi sebagai permulaan ikuti cara-cara berikut:</div><div class="MsoNormal" style="line-height: normal;">CARA-CARA MENYETARAKAN SUATU PERSAMAAN REAKSI</div><div class="MsoListParagraphCxSpFirst" style="line-height: normal; mso-list: l2 level1 lfo4; text-indent: -18.0pt;">     a.     Tetapkan koefisien salah satu zat, biasanya zat yang rumus kimianya paling kompleks, sama dengan 1, sedangkan zat lain diberikan koefisien sementara dengan huruf</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal; mso-list: l2 level1 lfo4; text-indent: -18.0pt;">     b.    Setarakan terlebih dahulu unsur yang terkait langsung dengan zat yang diberi koefisien 1 itu ( jumlah atom kiri=jumlah atom kanan).</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal; tab-stops: 135.0pt;">Ingat!!</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal;">Penyetaraan persamaan reaksi berkaitan dengan hukum lavoiser.</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal;">Massa sebelum reaksi = Massa sesudah reaksi</div><div class="MsoListParagraphCxSpLast" style="line-height: normal; mso-list: l2 level1 lfo4; text-indent: -18.0pt;">     c.      Setarakan unsur lainnya. Biasanya akan membantu jika atom O disetarakan paling akhir.</div><div class="MsoNormal" style="line-height: normal;">Untuk lebih jelasnya, perhatikan contoh berikut.</div><div class="MsoNormal" style="line-height: normal;">Reaksi pembakaran gas metana (CH4) menghasilkan karbondioksida dan uap air</div><div align="center" class="MsoNormal" style="line-height: normal; text-align: center;">CH4   +       O2      =       CO2   +       H2O</div><div class="MsoListParagraphCxSpFirst" style="line-height: normal; mso-list: l3 level1 lfo5; text-indent: -18.0pt;">     a.     Tetapkan koefisien CH4 = 1, Sedangkan yang lainnya dengan huruf.</div><div align="center" class="MsoListParagraphCxSpMiddle" style="line-height: normal; text-align: center;">1 CH4  +  a O2  =   b CO2  +  c H20</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal; text-indent: -18pt;">     b.     Penyetaraan atom C dan H</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal;">Penyetaraan atom C</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal;">Jumlah atom C di ruas kiri = 1 dan di ruas kanan = b ,  berarti b=1</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal;">Penyetaraan atom H</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal;">Jumlah atom H di ruas kiri=4 dan di ruas kanan=2c, berarti 2c=4 atau c=2</div><div class="MsoListParagraphCxSpLast" style="line-height: normal;">Dengan b=1 dan c=2, persamaan reaksinya menjadi:</div><div align="center" class="MsoNormal" style="line-height: normal; text-align: center; text-indent: 36pt;">1CH4   +   a O2   =   1 CO2   +  2 H20</div><div class="MsoListParagraphCxSpFirst" style="line-height: normal; text-indent: -18pt;">     c.      Penyetaraan atom O</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal;">Jumlah atom O di ruas kiri= 2a dan di ruas kanan = 2+2=4  berarti 2a=4 atau a=2</div><div class="MsoListParagraphCxSpMiddle" style="line-height: normal;">Dengan demikian persamaan setaranya adalah:</div><div align="center" class="MsoListParagraphCxSpMiddle" style="line-height: normal; text-align: center;">1CH4   +  2 O2    = 1 CO2   +  2 H20</div><div align="center" class="MsoListParagraphCxSpLast" style="line-height: normal; text-align: center;">Note: Koefisien 1 tidak perlu ditulis</div><div class="MsoNormal">SOAL </div><div class="MsoNormal">Setarakan Persamaan Reaksi Berikut.</div><div class="MsoListParagraphCxSpFirst" style="margin-left: 18pt; text-indent: -18pt;">1.    C(S)         +        O2 (g)           =        CO (g)</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">2.    Al (s)       +        O2 (g)           =        Al2O3 (s)</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">3.    C2H2 (g)  +        O2 (g)           =        CO2 (g)             + H2O(l)</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">4.    Mg(s)      +        HCl    (aq)     =        MgCl2 (aq)        +  H2 (g)</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">5.    CS2         +        O2               =        CO2                   +  SO2</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">6.    Al2O3     +        HCl             =        AlCl3                +  H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">7.    C2H5OH +        O2               =        CO2                  +  H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">8.    Al2O3         +        H2SO4         =        Al2(SO4)3      +  H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">9.    CaCO3    +       HCl              =        CaCl2               + CO2   +    H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">10.           NH3     +        O2               =        NO                   +  H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">11.           Ba(OH)2      +P2O5         =        BA3(PO4)2       + H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">12.           Pl3     +        H20             =        H3PO3              +  Hl</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">13.           NaOH+       H3PO4         =        NA3PO4           + H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">14.           Ca3(PO4)2   + SiO2+ C    =        CaSiO3           +  CO  +  P4</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="margin-left: 18pt; text-indent: -18pt;">15.           H2      +        O2               =        H2O</div><div class="MsoListParagraphCxSpLast"> 
</div><div class="MsoNormal">Jawaban:</div><div class="MsoListParagraphCxSpFirst" style="text-indent: -18pt;">   1.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    C(S)               +        O2 (g)           =        2 CO (g)</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">   2.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    4 Al (s)         +        3 O2 (g)        =        2 Al2O3 (s)</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">   3.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    2 C2H2 (g)        +        5 O2 (g)        =        4  CO2 (g)   +  2 H2O(l)</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">   4.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    Mg(s)           +        2 HCl (aq)     =        MgCl2 (aq) +  H2 (g)</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">   5.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    CS2              +        3  O2           =        CO2  +  2 SO2</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">   6.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    Al2O3           +        6 HCl          =        2 AlCl3    +  3 H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">   7.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    C2H5OH      +        3 O2            =        2 CO2  +   3 H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">   8.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    Al2O3                 +        3 H2SO4      =        Al2(SO4)3  +   3 H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">   9.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    CaCO3         +       2 HCl          =        CaCl2  +  CO2   +    H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">  10.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">   4 NH3               +        5 O2  =        4 NO  + 6 H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">  11.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    3 Ba(OH)2   +P2O5         =        BA3(PO4)2 + 3 H2O</div><div class="MsoListParagraphCxSpMiddle"></div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">  12.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    Pl3               +        3 H20 =        H3PO3  + 3 Hl</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">  13.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    3 NaOH      +        H3PO4= Na3PO4     +3 H2O</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">  14.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    2 Ca3(PO4)2+ 6 SiO2+ 9 C       = 6 CaSiO3 +9 CO+ P4</div><div class="MsoListParagraphCxSpMiddle"> 
</div><div class="MsoListParagraphCxSpLast" style="text-indent: -18pt;">  15.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    2 H2            +        O2               =        2 H2O</div><div class="MsoNormal"> 
</div><div class="MsoNormal"> 
</div><div class="MsoNormal">2. Tuliskan persamaan setara untuk setiap reaksi berikut,kemudian setarakan.</div><div class="MsoNormal">a. Nitrogen dengan hidrogen membentuk amonia</div><div class="MsoNormal">b. Dinitrogen pentaoksida dengan air membentuk asam nitrat</div><div class="MsoNormal">c. Alkohol dengan oksigen membentuk karbondioksida dan uap air</div><div class="MsoNormal">d. Besi dengan oksigenmembentuk besi(III)oksida</div><div class="MsoNormal">e. Karbondioksida dan amonia membentuk urea dan air</div><div class="MsoNormal"> 
</div><div class="MsoNormal">Jawab:</div><div class="MsoNormal"> 
</div><div class="MsoListParagraphCxSpFirst" style="text-indent: -18pt;">          A.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    N2                  +        3 H2             =        2 NH3 </div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">          B.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    N2O5                  +        H2O             =        2 HNO3</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">          C.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">    C2H5OH        +        2 CO2          =        2 CO2           +        3 H2O</div><div class="MsoListParagraphCxSpMiddle" style="text-indent: -18pt;">          D.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">   2 Fe                +        3 O2             =        2 FeO</div><div class="MsoListParagraphCxSpLast" style="text-indent: -18pt;">          E.<span style="font-feature-settings: normal; font-kerning: auto; font-language-override: normal; font-size-adjust: none; font-stretch: normal; font-style: normal; font-synthesis: weight style; font-variant: normal; font-weight: normal; line-height: normal;">     CO2               +        2 NH3          =        CO(NH2)2    +        H2O</div><div class="MsoNormal">3. Berikut adalah persamaan reaksi yang belum setara antara hidrogen dengan oksigen membentuk air.</div><div align="center" class="MsoNormal" style="text-align: center;">H2(g)              +        O2(g)              =        H2O(l)</div><div class="MsoNormal">Apakah reaksi tersebut dapat disetarakan dengan mengubah indeks kovalen oksigen diruas kanan menjadi 2 (mengubah H2O menjadi H2O2) Jelaskan?</div><div class="MsoNormal">Tidak bisa, karena untuk menyatarakan suatu persamaan reaksi kovalen harus berada di depan rumus kimia tersebut. Jadi, bukan ditambahkan indeks oksigen diruas kanan ataupun menambahkan indeks oksigen di belakang rumus kimia tersebut.</div><div class="MsoNormal">Sehingga persamaan reaksinya adalah</div><div align="center" class="MsoNormal" style="text-align: center;">2 H2            +        O2               = 2 H2O</div><div align="center" class="MsoNormal" style="text-align: center;"> 
</div><div align="center" class="MsoNormal" style="text-align: center;">Cukup Sekian, Semoga Bermanfaat:) </div></div>

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