MEDIUM
MYP:4-5
IMPORTANT
Earn 100
Sketch a diagram representing the particles in a concentrated solution and a dilute solution.
Important Questions on What are the Impacts of Chemical Industry?
MEDIUM
MYP:4-5
IMPORTANT
Why must a chemical equation be balanced? How do atoms and their compounds persist in the environment?
MEDIUM
MYP:4-5
IMPORTANT
What is the fairest way to use our chemical resources?
MEDIUM
MYP:4-5
IMPORTANT
The reaction between limewater and the exhaled carbon dioxide in your breath is
Deduce what the formation of the precipitate suggest about the solubility of calcium carbonate.
EASY
MYP:4-5
IMPORTANT
State the chemical name and the physical state of .
MEDIUM
MYP:4-5
IMPORTANT
State numbers to balance the following chemical reaction.
MEDIUM
MYP:4-5
IMPORTANT
State numbers to balance the following chemical reaction.
MEDIUM
MYP:4-5
IMPORTANT
As a solution of barium hydroxide is mixed with an aqueous solution of sulphuric acid, a white precipitate forms and the electrical conductivity decreases markedly. Write down word and symbol equations for the reaction that occurred.
MEDIUM
MYP:4-5
IMPORTANT
As a solution of barium hydroxide is mixed with an aqueous solution of sulphuric acid, a white precipitate forms and the electrical conductivity decreases markedly. Suggest an explanation for the change in conductivity.