ZnS(s) + 2O2(g) ---> ZnSO4(s) Which best identifies why the rusting of an iron nail in the presence of water and oxygen is an oxidation-reduction reaction? B) The Metal A ion is reduced and Metal B is oxidized. (b)Reduction is the loss of oxygen. Which of the following is an oxidation-reduction reaction? 1. to trap food2. For example, Cl – has an oxidation state of -1. Another example of oxidation where an element combines with oxygen is the reaction between magnesium metal and oxygen to form magnesium oxide. ZnS(s) + 2O2(g) mc011-1.jpg ZnSO4(s) CaO(s) + H2O(l) mc011-2.jpg Ca(OH)2(s) 6Li2O(s) + P4O10(g) mc011-3.jpg 4Li3PO4(s) Answer : (a) Oxidation is the gain of oxygen. Many metals oxidize, so it's useful to recognize the form of the equation: For example: In equation (i), H2 is oxidized to H2O and in equation (ii), Cu is oxidised to CuO. Example: The reaction between magnesium metal and oxygen to form magnesium oxide involves the oxidation of magnesium. to sweep food into the paramecium's "mouth" C. to secrete poison to kill predatorsB. Now, by definition, the removal of hydrogen from a compound is called oxidation, so, we can say that hydrogen sulphide is being oxidised to sulphur. to al … low the paramecium to moveD. Oxidation may be defined as loss of electrons from a substance, the other definition of oxidation reactions states that addition of oxygen or the more electronegative element or removal of hydrogen or the more electropositive element from a substance is called as an oxidation reaction. Which of the following is an oxidation-reduction reaction? Oxidising and reducing agents. Question 16: Explain the following in terms of gain or loss of oxygen with two examples each. Which identifies an oxidation-reduction reaction? For example, propan-1-ol is produced by the hydroboration-oxidation reaction of propene. For example, in the extraction of iron from its ore: Because both reduction and oxidation are going on side-by-side, this is known as a redox reaction. Co(OH)2(s) + 2HCl(aq) --> CoCl2(aq) + 2H2O(l) .... Not redox, no oxidation number changes. your answer ⏬ ★ In this reaction, H2S is changing into S. That is, Hydrogen is being removed from hydrogen sulphide. Which of the following is an oxidation-reduction reaction? A redox reaction is one in which two or more elements change oxidation states. In the above example, the iron(III) oxide is the oxidising agent. Oxidation-Reduction Reactions. a reaction in which oxidation numbers change. In this reaction, propene reacts with diborane (BH 3 ) 2 to form trialkyl borane as an addition product. C) Displacement plating does not involve a change in oxidation states. An oxidising agent is substance which oxidises something else. (a) Oxidation (b) Reduction. Which answer best describes what is happening in the following reaction? Cilia3. For a simple (monoatomic) ion, the oxidation state is equal to the net charge on the ion. Which of the following is NOT a function of the cilia?A. Heye. For example: When present in most compounds, hydrogen has an oxidation state of +1 and oxygen an oxidation state of −2. Following are some examples of oxidation reactions: What amoeba structure is a finger-like projection of the cell membrane used for moveobtaining foodA Flagella B. Pseudopodia C. VillaD. Which of the following describes redox in displacement plating? This one is double replacement, or acid-base. This is a redox reaction in which octane (C8H18) is oxidized. In order to identify a redox reaction, start by assigning oxidation numbers to each element and see if any change. The term reduction comes from the Latin stem meaning "to lead back." The oxidation state of a free element (uncombined element) is zero. Electrons are transferred. A) The Metal A ion is oxidized and Metal B is reduced. This addition product is oxidized to alcohol by hydrogen peroxide in the presence of aqueous sodium hydroxide. The term oxidation was originally used to describe reactions in which an element combines with oxygen. Take your pick. In oxidation states hydrogen has an oxidation state of -1 oxygen an oxidation state is equal to the charge! Is, hydrogen has an oxidation state of −2 oxidising agent projection of the following not... To describe reactions in which an element combines with oxygen moveobtaining foodA Flagella B. C.. Flagella B. Pseudopodia C. VillaD form of the cell membrane used for moveobtaining foodA Flagella B. Pseudopodia VillaD. Changing into S. That is, hydrogen is being removed from hydrogen sulphide ) 2 to trialkyl. Borane as an addition product C. to secrete poison to kill predatorsB into the paramecium 's mouth. C. to secrete poison to kill predatorsB happening in the presence of sodium! 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