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Balancing of chemical equations

Quiz by Ankush

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9 questions
Show answers
  • Q1
    CH4+O2→CO2+H2O
    CH4+2O2→CO2+2H2O
    CH4+2O2→CO2+H2O
    CH4+2O2→3CO2+2H2O
    CH4+2O2→4CO2+2H2O
    30s
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  • Q2
    C6H12O6+O2→CO2+H2O
    C6H12O6+O2→4CO2+H2O
    C6H12O6+O2→5CO2+H2O
    C6H12O6+O2→CO2+6H2O
    C6H12O6 + O2→ 6CO2 + 6H2O
    30s
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  • Q3
    Mg+O2→MgO
    2Mg + O2 --- 4 MgO
    2Mg + O2 --- 2 MgO
    2Mg + 4O2 --- 2 MgO
    2Mg + 2O2 --- 3 MgO
    30s
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  • Q4
    Zn (s) + AgNO3 (aq) ⇒ Zn(NO3)2 (aq) + Ag (s)
    Zn (s) + 2 AgNO3 (aq) ⇒ Zn(NO3)2 (aq) + 4Ag (s)
    Zn (s) + 4 AgNO3 (aq) ⇒ Zn(NO3)3(aq) + 2 Ag (s)
    2Zn (s) + 6AgNO3 (aq) ⇒ Zn(NO3)2 (aq) + 2 Ag (s)
    Zn (s) + 2 AgNO3 (aq) ⇒ Zn(NO3)2 (aq) + 2 Ag (s)
    30s
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  • Q5
    N2 (g) + H2 (g) ⇒ NH3 (g)
    N2 (g) + 3 H2 (g) ⇒ 4 NH3 (g)
    N2 (g) + 3 H2 (g) ⇒ 24NH3 (g)
    N2 (g) + 3 H2 (g) ⇒ 2 NH3 (g)
    N2 (g) + 4H2 (g) ⇒ 2 NH3 (g)
    30s
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  • Q6
    BaCl2 (aq) + Na2SO4 (aq) ⇒ NaCl (aq) + BaSO4 (s)
    BaCl2 (aq) + Na2SO4 (aq) ⇒ 4 NaCl (aq) + BaSO4 (s)
    2BaCl2 (aq) + Na2SO4 (aq) ⇒ 2 NaCl (aq) + 2BaSO4 (s)
    2BaCl2 (aq) + Na2SO4 (aq) ⇒ 2 NaCl (aq) +2 BaSO4 (s)
    BaCl2 (aq) + Na2SO4 (aq) ⇒ 2 NaCl (aq) + BaSO4 (s)
    30s
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  • Q7
    Ca (s) + H2O (l) ⇒ Ca(OH)2 (aq) + H2 (g)
    Ca (s) + 3H2O (l) ⇒ Ca(OH)2 (aq) + 2H2 (g)
    2Ca (s) + 3 H2O (l) ⇒ Ca(OH)2 (aq) + H2 (g)
    Ca (s) + 2 H2O (l) ⇒ Ca(OH)2 (aq) + H2 (g)
    Ca (s) + 4 H2O (l) ⇒ Ca(OH)2 (aq) + H2 (g)
    30s
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  • Q8
    .MgBr2 (aq) + KOH (aq) ⇒ KBr (aq) + Mg(OH)2 (s)
    . MgBr2 (aq) + 4KOH (aq) ⇒ 2 KBr (aq) + Mg(OH)2 (s)
    . MgBr2 (aq) + 2 KOH (aq) ⇒ 3KBr (aq) + Mg(OH)2 (s)
    . MgBr2 (aq) + 2 KOH (aq) ⇒ 2 KBr (aq) + Mg(OH)2 (s)
    . MgBr2 (aq) + 2 KOH (aq) ⇒ 4 KBr (aq) + Mg(OH)2 (s)
    30s
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  • Q9
    NaOH (aq) + H2SO4 (aq) ⇒ H2O (l) + Na2SO4 (aq)
    2 NaOH (aq) + H2SO4 (aq) ⇒ 3 H2O (l) + Na2SO4 (aq)
    2 NaOH (aq) + H2SO4 (aq) ⇒ 8 H2O (l) + Na2SO4 (aq)
    4 NaOH (aq) + H2SO4 (aq) ⇒ 2 H2O (l) + Na2SO4 (aq)
    2 NaOH (aq) + H2SO4 (aq) ⇒ 2 H2O (l) + Na2SO4 (aq)
    30s
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