EASY
Lower Secondary Stage 9
IMPORTANT
Earn 100

Platinum and gold are found in the earth's crust as an element, not as a compound.What does this tell you about their reactivity ?

Important Questions on Reactivity and Rates of Reaction

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 7 - Reactivity and Rates of Reaction>Exercise 1>Q 1
What is formed when metals react with oxygen? 
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 7 - Reactivity and Rates of Reaction>Exercise 1>Q 2
Write the word equation for reaction between lithium and oxygen.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 7 - Reactivity and Rates of Reaction>Exercise 1>Q 3
The metals lithium, sodium and potassium are in group 1.Predicts which of the metals will react more quickly with oxygen. Give a reason for your answer.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 7 - Reactivity and Rates of Reaction>Exercise 2>Q 4
What are the products when metal reacts with water ?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 7 - Reactivity and Rates of Reaction>Exercise 2>Q 5
Write the word equation for the reaction between sodium and water.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 7 - Reactivity and Rates of Reaction>Exercise 2>Q 6
Put lithium, sodium and potassium in order of reactivity with water and justify your order.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 7 - Reactivity and Rates of Reaction>Exercise 2>Q 7
Why do you think lithium, sodium and potassium are stored in jars of oils? 
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 7 - Reactivity and Rates of Reaction>Exercise 2>Q 8
Write a balanced symbol equation for the reaction between sodium and water.