₦airaland Forum

FrancisTony: If 10.5g of lead(II)trioxonitrate is dissolved in 20cm^3 of distilled water at 18^oC, the solubity of the solute in mol dm^-3 is

A) 1.60
B) 5.25
C) 16.00
D) 525.00

[Pb=207, N=14, O=16]

Professor1234:
1. Shape common to all forms of silicon is?
2. Berryllium oxide is an example of which oxide'
3. The neck of the vagina is the?
4. Which element can be represented with two symbols?
5. Which noble gas is used as fire extinguisher?
6. The percentage of which protein is the highest in the human body?
7. The foramen in which the spinal cord connect to the brain is?
8. The order of reaction can be gotten from?
9. Which element is widely called brimstomes?
10. Amoeba lacks what thus they are shapeless

add the thread creator professor1234 on 2go and on facebook www.facebook.com/adebisi.yusuff

FrancisTony: 0.0075 mole of calcium trioxocarbonate(iv) is added to 0.015 mole of a solution of hydrochloric acid. The volume of gas evolved at s.t.p is
A) 224cm³
B) 168cm³
C) 112cm³
D) 100cm³

[molar volume of a gas at s.t.p= 22.4 dm³ ]

ngkessy: please rymzo, I got 214 in jamb will I be lucky enough to obtain medcine if I do well in,my post ume?

labodinho: #comes
in to break the silence

Biology

A boy ate a plate of EBA, vegetable stewand beef meat.He drank a cup of
MILK and ate carrot too.What are the enzymes and site of location of
those enzymes that are going to act on this food he ate?

Dr. Laz'Devitan:
Answers
1. LIVER(mostly visceral organs of the ABDOMINAL CAVITY)
2)Pepsin makes soluble the curds of CASEIN!
3)Man=32.....Dog=42.....Rabbit=28
4)Sebum
5)what is supporting the testis in the scrotal sac are mainly connective/soft tissues.....It is not necessarily a term ''HOLD'' to be use!

Influence01: you are right
Caltalytic hydrogenation of benzene produces
A.Oil
B.cyclohexene
C.cyclohexane
D.margarine

Influence01: A chemical reaction in which the hydration energy is greater than the lattice energy is referred to as
A.a spontaneous reaction
B.an endothermic reaction
C.an exothermic reaction
D.a reversible reaction

Swagalord18: Folowing

Dr. Laz'Devitan:
Manubrium........the upper section of the pectoral(CHEST) region.....major bones of concern der are
CLAVICLE
COSTAL(RIBS) CARTILAGE....and the
STERNAL bodies in the extra!

Dr. Laz'Devitan:
Why do you think am in?

Don't believe you can go deep than me?

Come on!....em lyk yah!

Influence01: condensation polymerization involve d removal of a compound eg Water, ammonia when monomers combine 2gether 2 form a polymer while addition polymerization dere is no elimination of any substance

Influence01: are u an aspirant

Dr. Laz'Devitan:
Reptiles are sluggish in design for some above reasons
1)3 chamber heart and blood circulation not as fast as in human.
2)The seem to loss heat quickly to the environment and by the
environment through behavioural adaptation control their heat loss.The
term POIKILOTHERMIC is out of BIOLOGY term....we specially use
ECTOTHERMAL ORGANISMS....U should knw that some reptiles do have
mechanism to control dia internal heat too.If u wake very early in the morning in a white-sunny day,you will observe that some LIZARD are still numb,green in dia bed,eventhough u kicked at dem,they wont wake..not that dey are dead....dey ar not..they ar trying to keep energy to by shutting down most working heat-related mechanism....At the end.......

They come out for BASKING!

Influence01: sowi kidney, its has something to do with blood pressure

Influence01: Stomach, it coagulates or curdles milk

kenshin17: why are reptiles slow compared to man,and why are the poikothermic?

Influence01: give your reason

Influence01: give your reason

Influence01: The most electropositive metal is?

Influence01: The opening and closing of the stoma are regulated by
A.transpiration
B.respiration
C.diffusion
D.osmosis