Certain metals react with oxygen to form metallic oxides. b)Non-metals react with oxygen to form non-metal oxides. In this lesson, we will discuss how certain metals react with the oxygen in the air to form new compounds resulting in a change in mass. These metal oxides are basic in nature. For example: When magnesium strip is burned in the presence of oxygen it forms magnesium oxide and when magnesium oxide dissolves in water it forms magnesium hydroxide. The Metal oxides , Also known as basic oxides, are compounds produced by the reaction of a metal with oxygen.. B) More iron oxide will be produced. What will be the effect of increasing the pressure of oxygen gas in a closed reaction vessel? But most of them do this on ignition. D) There is no effect; a catalyst is needed. This method can be used to compare different metals and their reactivity with oxygen by observing the reaction. Aluminium if exposed to A) Less reaction will take place. Response: The more active a metal is, the more readily it reacts with oxygen. Explain with suitable examples the chemical properties of non-metals. a)When a metal reacts with oxygen, a metal oxide forms. Iron metal reacts with oxygen gas to produce iron(III) oxide. Answer: Reaction with oxygen: Non-metals react with oxygen to form acidic oxides. These metal oxides are basic in nature. Phosphorus is a very reactive non metal.If it is kept in open air it will react with oxygen and catch fire. These salts have a basic behavior, hence their name. Thus,Phosphorus is kept in water containers Questions Some metals will react with oxygen when they burn. When a metal reacts with oxygen, a metal oxide forms. Oxygen can be removed from metal oxides in chemical reactions. Steel is an alloy made mostly of iron. Reaction with water: Non-metals do not react with water. Metals that react with oxygen produce oxides as their products. For example, They form negative ions and are good oxidising agents. Rust is a form of iron oxide and it forms slowly when iron is exposed to air. The general equation for this reaction is: metal + oxygen → metal oxide. Two examples of combustion reactions are: Iron reacts with oxygen to form iron oxide: 4 Fe + 3 O 2 → 2 Fe 2 O 3 Non-metal oxides are acidic in nature. These reactions are called combustion reactions. C) The reaction mixture will catch fire. Non-metal oxides are acidic in nature. Reaction of Non-Metals with Oxygen Non Metals react with oxygen to Produce Non Metal Oxide It is acidic in nature Example Note- Why is Phosphorus not kept in open? They turn blue litmus to red. 1)When sulphur burns in air,it combines with the oxygen of air to form sulphur dioxide (acidic oxide) S (s) + O 2 (g) ——> SO 2 (g) Sulphur dioxide dissolves in water to form sulphurous acid solution Non-metals react with oxygen to form non-metal oxides.Non-metal oxides are acidic in nature.They turn blue litmus to red. 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