Question

4. Reaction of magnesium metal with aqueous hydrochloric acid Observations: Reaction Type: Oxidation States of atoms in reactants Oxidation states of atoms in products Mg - H- - - Mg - H -. Balanced Reaction: (including states) Substance Oxidized? Substance Reduced? Oxidizing Agent? Reducing Agent? Number of electrons transferred 5. Reaction of copper metal with aqueous magnesium sulfate Observations: Reaction Type: Balanced Reaction: (including states) Substance Oxidized? Substance Reduced? Oxidizing Agent? Reducing Agent? Number of electrons transferred 6. Reaction of methanol (CH3OH) with oxygen gas Observations: Reaction Type: Balanced Reaction: (including states) Substance Oxidized? Substance Reduced? Oxidizing Agent? Reducing Agent? Number of electrons transferred

Answer 1

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Balanced chemical reaction Mg(s) +2 Hellog) - Mgel caq) + H2 (8) Reaction type - Single displacement reaction. observation a Reaction will occur gining rise of heat as it is exothermic. If water is reemone Mad crystal will form oxidation state of atom in reactants мя о н 1 - 1 oxidation state & atom in product ма 2 нос - Mg will oxidised as oxidation state changes from 0 to +2 I will reduced as oxidation state changes from t1 to o.

Haud as Mg to Mg+2 oxidizing agent as it onidized while reduced itself Mg act as reducing agent as it reduced Ht to the while oscidized itself Numer ge transferred is 2 5. coss + Mg soulag) - No. reaction This reation does not occur because Mo is more reactive than cu. Hence cu will not displace Mg from Mg sou .

16. Balanced chemical reaction 200₂ (9) + 4 H0 (1) 2 CH ₂ OH (L) + 3 O₂ 18) - Reaction type - Combustion reaction observation - Cor gas and H₂O liquide will form, Catom in CH₂OH willonidised as its oxidation state changes from -2 to tu O atom in Oz will reduced as its oxidation state changes from oto -2

CH₂ OH act as reducing agent as it reduced or from o to - onidation state and oxidised itself. Oz act as origising agentas oxidised c from -2 to tu oxidation state while reduced itself Number of e is) transferred = 12 € 202 26t4 +126 600 +120 602-

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