Compounds of the alkali metals
3 marks · EasyDescribe what you would observe and name the product when sodium is heated strongly in air.
State the colour of the flame when sodium burns.
What is the appearance of the solid product formed?
Name the compound produced in this reaction.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
(a) Yellow · must show Correctly states yellow
(b) White solid · must show States white (powder or solid)
(c) Sodium oxide · must show Correct name of product
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · States yellow as the flame colour.
B1 (b) · 1 mark · Describes the solid product as white (accept 'white powder').
B1 (c) · 1 mark · Names the product as sodium oxide.
Worked solution
a) Sodium burns with a yellow flame. b) The product is a white solid. c) The solid is sodium oxide.