chemistry predictions

金在囧

  

Paper 2
Q1. Glass, ceramics, Haber Process, polymers, reason for alloying
Q2. Period 3, Group 1, electron arrangements, amphoteric
Q3. Voltaic Cell, Electroplating
Q4. ROR, temperature, HCl + CaCO3/Mg, collision theory
Q5. Heat of Displacement, calculations, Zn+CuSO4
Q6. Medicine, Palm oil to produce soap, effectiveness
Q7. Periodic Table, reactivity, electronegavity, chemical bonds
Q8. Carbon compound, flow chart, compare alkane & alkene, prepare ester
Q9. Redox, U tube,Halogens, compare whether is redox or not,
Q10. pH value, compare, test salt nitrate and chloride.
Q10(a). m/p & b/p of naphthalene, graph, isotopes
… more updates soon
Paper 3 Q1. Rusting of Iron, Sacrificial protection
Q2. Electrical Conductivity
Q2a. Insoluble Salt Graph, ionic equation
Q3a. Voltaic Cell, voltage, Mg, Zn, Cu
Q3b. Heat of Combustion
Q3c. Compare 2 liquids

[size=100%]到时候我们看看 到底准不准

devilfromheaven

不是很准~~
physic的不准~~

金在囧

回复 2# devilfromheaven


    诶。。突然觉得chemist很头疼

devilfromheaven

回复 3# 金在囧
今天还是没有木去读~~

金在囧

回复 4# devilfromheaven


    要一起在这里revise 吗？我很想睡。。。一个人读 ==""

devilfromheaven

回复 5# 金在囧
什么课？？

金在囧

回复 6# devilfromheaven


    先从form4开始....structure of atom

devilfromheaven

回复 7# 金在囧
里面有proton，neutron，和electron咯~~
nucleon number就是proton加neutron~~

金在囧

回复 8# devilfromheaven


      
     John dalton - atom is the smallest n discrete particle and it 's indivisible

devilfromheaven

回复 9# 金在囧
JJ-Thomson~~discovered negatively charge particles named------electron...

金在囧

回复 10# devilfromheaven


    Ernest rutherford - states that atom is a postively charged sphere that has electrons move around the circle
有点健忘

devilfromheaven

回复 11# 金在囧
james charwick....discovered electrically neutral subatomic particles named neutron...
如果没有记错~

金在囧

rutherford discovered nuclues     ....soli nah
是proton和nucleus = =check书一下
Ernest Rutherford - states that atom is a positivelly charged sphere with nucleus at center contains proton and electrons move around the nucleus。

devilfromheaven

回复 13# 金在囧
还有人了咩？

金在囧

回复 12# devilfromheaven


    错了哦。。然后到neils bohr ... electons move in orbit / shell。最后才是james chadwick. - nucleus contains protons and neutron。electrons move in shell。

devilfromheaven

回复 15# 金在囧
哈哈~~
我刚看到~改了哦~
你好强~

金在囧

particle theory of matter  - matter is made up of tiny and discrete particles



kinetic theory of matter  -  matter is made up of tiny and discrete particles which are always in motion
( PROVE)
- brownian motion
-Difussion  of liquid , gas

devilfromheaven

我想不起来的乜~~
你好厉害~

金在囧

回复 16# devilfromheaven


    到你elaborate difussion of liquid and gas 鸟

devilfromheaven

回复 19# 金在囧

the rate of diffusion depend on the temperature and the molecular mass of particles...
the higher the molecular mass, the lower the rate of diffusion....

diffusion refer on the process which particle intermingle as a result of their kinetic energy of motion...