New Document 1
Name:
________________________
Class:
________________________
Date:
________________________
Time:
6 minutes
Marks:
6 marks
Comments:
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Guidelines and tips
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
(b) Calculate the relative formula mass (Mr) of magnesium chloride (MgCl2). Relative atomic masses (Ar): magnesium = 24; chlorine = 35.5 ...
Typology: Exercises
2022/2023
1 / 3
This page cannot be seen from the preview
Don't miss anything!
Related documents
Partial preview of the text
Download New Document 1 and more Exercises Chemistry in PDF only on Docsity!
New Document 1
Name: ________________________
Class: ________________________
Date: ________________________
Time: 6 minutes
Marks: 6 marks
Comments:
Q1. (a) The diagram shows an atom of magnesium and an atom of chlorine.
Magnesium Chlorine Describe, in terms of electrons, how magnesium atoms and chlorine atoms change into ions to produce magnesium chloride (MgCl 2 ).
(4) (b) Calculate the relative formula mass ( M r) of magnesium chloride (MgCl 2 ). Relative atomic masses ( A r): magnesium = 24; chlorine = 35.
Relative formula mass ( M r) = ________ (2) (Total 6 marks)