Topics:
1. The Particulate Nature of Matter:
Ph scale-0-14
Horizontal- period -
Vertical- group l
Why dust particles move around in random way
Why bromine gas takes longer to fill jar than chlorine gas
//alkali metals are stored under oil bcs they are reactive and
Lead compounds are damaging for nervous system and can affect cognitive development in children)
Anyhdrous copper sulfate
WHY IONIC COMPOUND HIGHER MP THAN COVALENT COMPOUND
,Name of covalent compounds with higher mp than licl
Why liquid and gas both take shape of container but liquid has fixed volume and
gas doesn't
//reagent is same as reactant
Effect of impurity on melting, boiling freezing point:
The presence of an impurity in a substance: ◆ lowers the melting point, and freezing point ◆
raises the boiling point of the substance. , I
Why gases diffuse
How to show substance is liquid at room temperature
,DIFFERENCE BETWEEN PHYSICAL AND CHEMICAL CHANGE
DIFFERENCE BETWEEN EVAPORATION AND BOILING
BOILING IS ALSO FASTER RATE THAN EVAPORATION
SOLID:
Reason of brownian motion:
Physical and chem properties of transition metals:
, How to show if water is pure?
Why does energy have to be supplied to turn liquid into gas?
To overcome the attractive forces
Why does less volume have higher pressure?
Particle hit the walls of container more often
Gas separation
Not touching and far apart
2. Experimental Techniques:
How to test if ethanol produced is pure
Tests for Cations
1. The Particulate Nature of Matter:
Ph scale-0-14
Horizontal- period -
Vertical- group l
Why dust particles move around in random way
Why bromine gas takes longer to fill jar than chlorine gas
//alkali metals are stored under oil bcs they are reactive and
Lead compounds are damaging for nervous system and can affect cognitive development in children)
Anyhdrous copper sulfate
WHY IONIC COMPOUND HIGHER MP THAN COVALENT COMPOUND
,Name of covalent compounds with higher mp than licl
Why liquid and gas both take shape of container but liquid has fixed volume and
gas doesn't
//reagent is same as reactant
Effect of impurity on melting, boiling freezing point:
The presence of an impurity in a substance: ◆ lowers the melting point, and freezing point ◆
raises the boiling point of the substance. , I
Why gases diffuse
How to show substance is liquid at room temperature
,DIFFERENCE BETWEEN PHYSICAL AND CHEMICAL CHANGE
DIFFERENCE BETWEEN EVAPORATION AND BOILING
BOILING IS ALSO FASTER RATE THAN EVAPORATION
SOLID:
Reason of brownian motion:
Physical and chem properties of transition metals:
, How to show if water is pure?
Why does energy have to be supplied to turn liquid into gas?
To overcome the attractive forces
Why does less volume have higher pressure?
Particle hit the walls of container more often
Gas separation
Not touching and far apart
2. Experimental Techniques:
How to test if ethanol produced is pure
Tests for Cations
