₦airaland Forum

Benjaminbest:
d element with d highest composition in d earth crust is......
A neon
b oxygen
c nitrogen
d carbon

d element with d highest composition in atmosphere is......
A nitrogen
B oxygen
c helium
d neon

Benjaminbest:
questions dat u are likely to see from chapter one and two
1. scientist approach to discoveries follows d order which include......
A further experiment and problem solving
b theory, negative and positive result
c experiment,hypothesis and result
d observation,hypothesis and experiment

2. which of these require crystallization most
a drug making
b cement making
c paint making
d perfume making

3. one of these is not a chemical change
a rusting
b sublimation
c slaking of quicklime
d fermentation

4. Method adopted in seperating lead || chloride from water is
a sieving
b decantation
c crystallization
d distillation

5. fractional crystallization is a method of seperating
a crude oil
b liquid_liquid mixture
c coal
d Solid of different solubilities in a liquid

6. all except one is a popular criteria for purity
a melting
b dielectric constant
c temperature
d centrifugation

7. d addition of water to calcium oxide leads to
a a physical change
b a chemical change
c the formation of a mixture
d an endothermic change

8. a chemical reaction is always associated with
a an increase in composition of one of d sub
b a change in volume of d reactant
c a change in nature of reactant
d the formation of new substance

Benjaminbest:
If a force P of 40N act in d direction due east and another force Q of 30N acts in the direction due North, calculate the resultant of these two force

Segipaul:
Resultant should be 50N

Destilo:
Kindly show how u got it....

tuwayz:
plS my peeps practice formulas very well in physics and don't just rely on the given formulas but try to substitute and derive new formulas memorise the formulas well, when u see a question thAt require cAlculation don't rush in selecting a formula for d question list out the given values 1st so u can see them clearly and understand which formula you should use, thank you all

Benjaminbest:
go get principles of physics

Segipaul:
who knows a vry gud physics textbuk...esp d one dat contains transistor(well detailed)

tuwayz:
I think combining text books is the best way because all text omit some certain things others have buT for calculations I think essential and comprehensive physics texts are better

Geofavor:
is there comprehensive physics?

tuwayz:
Why not? Comprehensive text books uses words that even an average student that understand clearly the price of d text ranges from #500-#650 depending on ur location in Nig

Geofavor:
aiit, thanks...

Do u Have any idea of where to get ebooks for this subjects?

tuwayz:
Nah bro, mayb u should goggle it

Geofavor:
lol... Aiit..... Nd you, are you also taking this jamb?

Geofavor:
lol... Aiit..... Nd you, are you also taking this jamb?

Benjaminbest:
guys tanks for kiping d thread busy i jst came bk from work i will update later dis evening mainly question from chapter 3 chem

tuwayz:
I think combining text books is the best way because all text omit some certain things others have buT for calculations I think essential and comprehensive physics texts are better

Halpher:
Have these pEepz!
The discrete particle responsible for a chemical reaction is.?
A)proton
B)neutron
C)electron
D)Nuclear charge.

Segipaul:
C. Electron

smartdave1:
B-Oxygen
A-Nitrogen