EASY
MYP:4-5
IMPORTANT
Earn 100

Why does gold not react with an acid such as hydrochloric acid ? 

Important Questions on Movement

EASY
MYP:4-5
IMPORTANT
Write down some examples of ionic compounds that are soluble in water and dissociate into more than two ions.
EASY
MYP:4-5
IMPORTANT
List types of rechargeable batteries that you have encountered and the types of device that they are used in. 
EASY
MYP:4-5
IMPORTANT
Evaluate and discuss the advantages and disadvantages of a rechargeable battery system over a non-rechargeable battery system.
EASY
MYP:4-5
IMPORTANT
Suggest why governments encourage individuals to recycle and dispose of batteries responsibly. Describe the type of environmental damage which may occur when batteries are thrown into landfill. 
EASY
MYP:4-5
IMPORTANT
Why do negatively charged anions from the salt bridge move into the anode cell and positively charged cations move into the cathode cell when the half-cells are connected ? 
EASY
MYP:4-5
IMPORTANT
Draw a labelled diagram of the apparatus and chemicals used in one of the tests you performed. Ensure that you label the polarity of the electrodes, the voltmeter, the anode and cathode, the direction of electron flow in the wires and the salt bridge. 
MEDIUM
MYP:4-5
IMPORTANT
Construct half-equations for each of the reactions that occurred at the anode and cathode in a simple voltaic cell. 
EASY
MYP:4-5
IMPORTANT
In a small group, compile a list of voltaic cell applications that impact your daily lives.