Dilute sulphuric acid reacts with aluminium powder

Chemical properties of aluminum Chemical The principal chemical reaction of aluminum with other chemical elements. These reactions are determined basic chemical properties of aluminum. What reacts aluminum Simple substances: • halogens (fluorine, chlorine, bromine and iodine) • sulfur • phosphorus • nitrogen • carbon • oxygen (combustion) Complex substances: • water • mineral acids (hydrochloric, phosphoric) • sulfuric acid • Nitric acid • alkalis • oxidizers • oxides of less active metals (alumothermy) What did not respond aluminum Aluminum does not react: • with hydrogen • under normal conditions – with concentrated sulfuric acid (due to passivation – formation of a dense oxide film) • under normal conditions – with concentrated nitric acid (also due to passivation) See. more on Aluminum and air Typically, the aluminum surface is always covered with a thin layer of aluminum oxide, which protects it from exposure to air, more precisely, oxygen. It is therefore considered, that aluminum does not react with air. If this oxide layer is damaged or removed, the fresh surface of aluminum reacts with oxygen in the air. Aluminum can burn in oxygen dazzling white flame to form aluminum oxide Al2O3. Reaction of aluminum with oxygen: • 4Al + 3O 2 —> 2Al 2O 3 Aluminum and water Aluminum reacts with water according to the following reactions [2]: • 2Al + 6H 2O = 2Al(OH) 3 + 3H 2 (1) • 2Al + 4H 2O = 2AlO (OH) + 3H 2 (2) • 2Al + 3H 2O = Al 2O 3 + 3H 2 (3) As a result of these reactions ...

a) Dilute sulphuric acid + Aluminium powder → Aluminium sulphate + Hydrogen gas H 2 S O 4 ( a q ) + 2 A l ( s ) → A l 2 ( S O 4 ) 3 ( a q ) + 3 H 2 ↑ b) K 2 C O 3 + 2 H C l → 2 K C l + H 2 O + C O 2 c) H N O 3 ( a q ) + K O H ( a q ) → K N O 3 ( a q ) + H 2 O ( l ) d) Z n + 2 N a O H → Z n ( O H ) 2 + 2 N a Q. Write word equations and then balanced equations for the reaction taking place when − (a) dilute sulphuric acid reacts with zinc granules. (b) dilute hydrochloric acid reacts with magnesium ribbon. (c) dilute sulphuric acid reacts with aluminium powder. (d) dilute hydrochloric acid reacts with iron filings.

Write word equations and then balanced equations for the reactions taking place when (a) dilute sulphuric acid reacts with zinc granules. (b) dilute hydrochloric acid reacts with magnesium ribbon. (c) dilute sulphuric acid reacts withaluminium powder. (d) dilute hydrochloric acid reacts with iron filings.