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