This question was previously asked in. Answer Detailed Solution Below Option 4 : combination. With hundreds of Questions based on Chemistry , we help you gain expertise on General Science. All for free. Explore Testbook Learn to attain the subject expertise with us. Start Now. The Correct Answer is Option 4 i. Get Started for Free Download App. More Chemistry Questions Q1. Which of the following pair is correct? Magnesium reacts with oxygen to produce magnesium oxide.
Write the balanced chemical equation for this reaction…. The product in the reaction is magnesium oxide MgO. Oxidation—reduction reactions, commonly known as redox reactions, are reactions that involve the transfer of electrons from one species to another.
The species that loses electrons is said to be oxidized, while the species that gains electrons is said to be reduced. The reactions between copper and nitric acid are examples of oxidation-reduction reactions, where gaining electrons reduces one element and losing them oxidizes the other. Nitric acid is not only a strong acid, it is an oxidizing agent.
Copper does not react with non-oxidising acids like hydrochloric acid or dilute sulfuric acid. As its electrode reduction potential is higher than that of hydrogen, pure copper cannot displace hydrogen from such acids. A scientist adds 4 grams of Cu to 2 grams of S to start the reaction. Separate this redox reaction into its component half-reactions.
Complete and balance the equation for this reaction in acidic solution. Reduction half-reaction:? I believe that the Oxidation is copper and that reduction is oxygen. So I tried to write it as. The following molecular equation represents the reaction that occurs when aqueous solutions of lead II nitrate and magnesium chloride are combined.
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