- Messages
- 887
- Reaction score
- 466
- Points
- 73
discuss the way in which the type of radiation emitted and the half-life determine the use for the
material.???
can anyone answer me please
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
discuss the way in which the type of radiation emitted and the half-life determine the use for the
material.???
did they say salt and water onlyIn chemistry, neutralization is a chemical reaction in which an acid and a base react to form a salt and water
But in the case of carbonates CO2 is also made..... which isnt the product of neutralisation reaction!!
can anyone answer me please
Plz explan 16,21 and 2610 C
16 C
21 A
26 C
First tell if my answers are correct then ill explain dnt worry !
well i need to know is the reaction in hell exothermic or endo thermic ?
and is atom a living thing or non.living?
and when we inhale cold air why do we exhale hot air?
no I don't have that, but have read it on wikipedia.Does ur book have this principle if not do read this its very informative and helps u in HABER,COntact etc !
As science defines it, to be living, a thing must be capable of growth, reproduction and metabolism.
atom doesnt grow ? so it shouldn't be a living thing..... correct or not? thats what i think.
and and yes as said earlier ........ our body temperature is more than our surroundings...... so comparatively colder air goes in while warm one comes out.......
ALLAH knows abt hell but im pretty sure its an exothermic reaction which releases a whole lot of heat !
Atom is non living it doesnt breathe at all or reproduce
we exhale hot air as when the air goes inside our body it gets the warm heat from our constant body tem so it becomes warm !
FOR Salman !
16. See in a dynamic equilibrium reaction,although not in syllabus search for Le CHATELIERS principle and ull see what wonders it does !
it says that any changes to a system in dynamic equilibrium result in that system opposing that change so,when u add more of T the system straight away wants dynamic equilibrium back and therefore it goes to convert extra T and the S available into P,Q and R back and bring it to the normal concentration!
21 Remember this reaction !
whenever ammonia salts are reacted by a base ammonia gas is givien off as a product with other products so thats what happens there !
22.Is abt Steel becoming rusted due to air and water vapour in air which results in less pressure of air in the column of tube therefore to fill this pressure some water goes up til the height of C , im too also a bit confused on this one ill check this out too !
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now