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Questions and Answers
What is the product of the reaction between Mg and ZnSO4?
What is the product of the reaction between Mg and ZnSO4?
- MgSO4 + Zn (correct)
- Zn + MgSO4
- Mg2SO4 + Zn
- No reaction
Which metal does not react with hydrochloric acid?
Which metal does not react with hydrochloric acid?
- Zn
- Mg
- Fe
- Au (correct)
In the cell notation, which is referred to as the anode?
In the cell notation, which is referred to as the anode?
- Neutral electrode
- Small brother
- Cathode
- Big brother (correct)
What is produced in the reaction between Fe and HCl?
What is produced in the reaction between Fe and HCl?
Which of the following metals will react with zinc sulfate?
Which of the following metals will react with zinc sulfate?
Which metal reacts with zinc sulfate in the provided reaction?
Which metal reacts with zinc sulfate in the provided reaction?
Which of the following metals is the least reactive?
Which of the following metals is the least reactive?
Which reaction does not occur according to the given information?
Which reaction does not occur according to the given information?
In electrolysis, where does reduction take place?
In electrolysis, where does reduction take place?
Which metal will more likely be reduced at the cathode in a reaction?
Which metal will more likely be reduced at the cathode in a reaction?
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Study Notes
Introduction to Metals
- Key metals: Lithium (Li), Magnesium (Mg), Cadmium (Cd), Copper (Cu), Potassium (K), Aluminum (Al), Cobalt (Co), Mercury (Hg), Barium (Ba), Manganese (Mn), Nickel (Ni), Silver (Ag), Calcium (Ca), Zinc (Zn), Tin (Sn), Platinum (Pt), Sodium (Na), Iron (Fe), Lead (Pb), Gold (Au), and Hydrogen (Hâ‚‚).
Reactivity in Reactions
- Magnesium (Mg) + Zinc Sulfate (ZnSOâ‚„): Produces Magnesium Sulfate (MgSOâ‚„) and Zinc (Zn) with no reaction in reverse.
- Iron (Fe) + Hydrochloric Acid (HCl): Produces Hydrogen gas (Hâ‚‚) and Iron(II) Chloride (FeClâ‚‚).
- Gold (Au) + Hydrochloric Acid (HCl): No reaction occurs.
Electrolysis Concepts
- Anode is referred to as "big brother," while the cathode is termed "little brother."
- The more reactive metal cation will be reduced at the cathode during electrolytic processes.
Reactivity Series
- Metals are arranged in decreasing order of reactivity:
- Lithium (Li) is the most reactive.
- Followed by Potassium (K), Barium (Ba), Calcium (Ca), Sodium (Na), Magnesium (Mg), Aluminum (Al), Zinc (Zn), Iron (Fe), Lead (Pb), Copper (Cu), Mercury (Hg), Silver (Ag), Platinum (Pt), and Gold (Au) is the least reactive.
Key Reaction Outcomes
- Mg + ZnSOâ‚„: Reaction occurs; reverse has no reaction.
- Zn + MgSOâ‚„: No reaction occurs.
- Fe + HCl: Reaction occurs.
- Au + HCl: No reaction occurs.
This framework highlights the relative reactivities of metals and their behaviors in specific chemical reactions, crucial for understanding electrochemistry and metal reactions.
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