EASY
Lower Secondary Stage 8
IMPORTANT
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Aluminium only contains one type of atom.

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Important Questions on Elements, Compounds and Mixtures

EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 9>Q 2
The symbol for sodium is So.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 9>Q 2
Oxygen contains two types of atom.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 9>Q 2
The symbol for potassium is K.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 10>Q 1
Describe the difference between an element and a compound.
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 10>Q 2
How many carbon and oxygen atoms are in one molecule of carbon dioxide CO2?
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 10>Q 3
A molecule of glucose has the formula C6H12O6. What elements make up a glucose molecule?
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 10>Q 3
A molecule of glucose has the formula C6H12O6. How many of each atom are in one molecule of glucose?
EASY
Lower Secondary Stage 8
IMPORTANT
Cambridge Lower Secondary Science Stage 8 : Student's book>Chapter 4 - Elements, Compounds and Mixtures>Exercise 10>Q 4
The compound lithium oxide has the formula Li2O. Which statement is correct?