Monday, March 7, 2016

Year 9 - Chemistry - 7-3-16

Thai Sikh International School
E-Learning Programme – Online Assignment –   dd/mm/yyyy
Name :                                                                                                     Subject : Chemistry Year   :  9A/B                                                                                                               Schedule No. : 8        

Q1. Classify each of the following compounds as either ionic or covalent:                                                                
                Nitrogen Dioxide ………………………………………………………..
                Hydrogen Bromide ………………………………………………………..
                Rubidium Iodide ………………………………………………………..
Francium Oxide ………………………………………………………..
Hydrogen Sulfide ………………………………………………………..

Q2. The element Calcium is a member of Group II of the Periodic Table.                                                   
       Would you expect Calcium to be metallic or non-metallic?
a.       What is the formula of the ion formed by Calcium? ....................................................

b.      What is the formula of Calcium sulphate?             .........................................................

c.       What is the formula of the ion formed by Calcium? .........................................................

d.      In the reactivity series, would you expect Calcium to be more or less reactive than Barium?

........................................................................................................................
e.      Construct chemical equation to represent the action of water and Calcium.

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