Question 83. (b) Name a non-metals which conducts electricity. Hardness: Out of all the non-metals, only solids are expected to be hard. Start studying Metals + non-metals. Sodium and potassium metal are stored under kerosene oil to prevent their reaction with the oxygen,moisture and carbon dioxide of air.They are so reactive that they react vigorously with oxygen.They catch fire and start burning when kept open in the air. This means that metals tend to react with non-metals. Oxygen reacts with hydrogen to produce two compounds: water (\(H_2O\)) and hydrogen peroxide (\(H_2O_2\)). Oxides of non-metals are formed when it reacts with oxygen. Magnesium forms magnesium oxide, carbon forms carbon dioxide, hydrogen forms water (hydrogen oxide), and so on. HNO3 is strong oxidizing agent. It also determines the reactivity of a particular metal with oxygen, cold water, hot water or steam, and acid. However, the intensity with which they react depends upon their position in the reactivity series. The reaction of chlorine with bases like sodium hydroxide gives products like sodium hypochlorite, sodium chloride as well as water. Metals. Answer: (d) acidic. Question 42: They react with acids as well as with bases. [B]. When sulphur reacts with oxygen, the oxide formed is ___ in nature. These oxides are also called acidic oxides as they form acids when dissolved in water. Question 84. In the periodic table, the reactivity of the metals and non-metals is explained based on the stability of the elemental form and its ions. Answer: Metals react with acids to form respective salts along with evolution of hydrogen gas that burns with a pop sound. But all metals do not react in the same way with water. 20. Metal oxides are basic in nature.They turn red litmus to blue. When a metal reacts with a non-metal, electrons transfer from the metal to the non-metal. Reactions with Hydrogen. (iii) The reaction of aluminium with iron (III) oxide is highly exothermic, it produces iron metal in molten form, which helps in joining the cracked iron parts of a machine. 19. Non-metals combine with oxygen to form acidic oxides or neutral oxides. Brainly User Brainly User Diffrencebetween metal and non metal on the basis of there Chemical properties . A. hydrogen (H) B. oxygen (O) C. metalloids D. non-metals See answer NotYoursEither NotYoursEither Answer: I think it is B. The reaction between non-metals and bases is a very complex one. 2Cu + O2 → 2CuO; 4Al + 3O2 → 2Al2O3 (ii) In general metals react with water to form a metal oxide or hydroxide and hydrogen gas. (a) alkaline (b) neutral (c) basic (d) acidic. Answer: The … Here are two examples for the non-metals carbon and sulphur. 18. Some metal firm amphoteric oxide. • Metals have varying levels of reactivity. 1 decade ago. Non-metals react with oxygen to form oxides.Non- metal oxides are soluble in water. METAL REACTIVITY • Most metals react with oxygen. These oxides dissolve in … (a) acidic (b) neutral (c) amphoteric (d) basic. They dissolve in water to form acids. Give reasons : (a) Platinum, gold and silver are used to make jewellery. (e) How do non-metals react with oxygen? Most nonmetal oxides are acidic and form oxyacids, which in turn yield hydronium ions (H3O+) in aqueous solution. However, most of them exist in gaseous form. Give equation of the reaction involved. The general equation for this reaction is: metal + oxygen → metal oxide. Aqueous solutions of oxides of non-metals react with carbonates to produce carbon dioxide. During chemical reactions, two or more substances when put in close contact, react with each other to form new substances. Reaction of metal and non-metals with oxygen Metals react with oxygen to form metal oxides.These metal oxides are basic in nature. I hope that helps. Answer: Non-metals combine with O 2 to form either. 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