ICSE chemistry

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Question
ICSEENICH10004299

Element X is a metal with a valency 2. 
Element Y is a non-metal with a valency 3. 

Write equations to show how X and Y form ions.

Solution

x --->  x2+ +2e
Y +3e -----> y3-.

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Question
ICSEENICH10004300

Element X is a metal with a valency 2. 
Element Y is a non-metal with a valency 3. 

If Y is a diatomic gas, write the equation for the direct combination of X and Y to form a compound.

Solution

3x + y2 ----> x3y2

Question
ICSEENICH10004301

Element X is a metal with a valency 2. 
Element Y is a non-metal with a valency 3. 

Write two applications of electrolysis in which the anode diminishes in mass.

Solution

The anode diminishes in electroplating and electrorefining. 

Question
ICSEENICH10004302

Element X is a metal with a valency 2. 
Element Y is a non-metal with a valency 3. 

If the compound formed between X and Y is melted and an electric current passed through the molten compound, the element X will be obtained at the (1).............. and Y at the (2) ........... of the electrolytic cell ( provide missing words.) 

Solution

1) Cathode, 2) anode

Question
ICSEENICH10004303

What kind of particles will be found in liquid compounds which are a non-electrolyte ? 

Solution

Molecules