Carbon dioxide sublimation
water evaporate
physical change is just change between solid/liquid/gas, other two are chemical changes
Answer:
(c) ![AgCN\ (K_{sp} =6.0\times 10^{-17})](https://tex.z-dn.net/?f=AgCN%5C%20%28K_%7Bsp%7D%20%3D6.0%5Ctimes%2010%5E%7B-17%7D%29)
Explanation:
The solubility product of a solid is the amount of solid dissociates into its respective ions in the solution. Thus more the value of the Ksp, the more is the salt soluble in the solvent.
So, Given that:-
![Sn(OH)_2\ (K_{sp} =1.6\times 10^{-19})](https://tex.z-dn.net/?f=Sn%28OH%29_2%5C%20%28K_%7Bsp%7D%20%3D1.6%5Ctimes%2010%5E%7B-19%7D%29)
![Al(OH)_3\ (K_{sp} =1.9\times 10^{-33})](https://tex.z-dn.net/?f=Al%28OH%29_3%5C%20%28K_%7Bsp%7D%20%3D1.9%5Ctimes%2010%5E%7B-33%7D%29)
![AgCN\ (K_{sp} =6.0\times 10^{-17})](https://tex.z-dn.net/?f=AgCN%5C%20%28K_%7Bsp%7D%20%3D6.0%5Ctimes%2010%5E%7B-17%7D%29)
![Fe(OH)_3\ (K_{sp} =2.6\times 10^{-39})](https://tex.z-dn.net/?f=Fe%28OH%29_3%5C%20%28K_%7Bsp%7D%20%3D2.6%5Ctimes%2010%5E%7B-39%7D%29)
The salt having highest value of Ksp is AgCN. So, it is most soluble.
Noble gases are the least<span> reactive </span>elements<span> in the periodic table because they have a full valence shell. Examples are, Argon, Neon, Xenon, and Helium</span>
Answer:
(NH₄)₃PO₄ (l) + Al(NO₃)₃(l) -----------→ AlPO₄(l) + 3NH₄NO₃(l)
Explanation:
Data Give:
Reaction between ammonium phosphate solution and solution of aluminum nitrate
- Write a balanced chemical equation
Details:
To write a balanced chemical equation we have to know formula units of compounds or molecules
Formula units
ammonium phosphate : (NH₄)₃PO₄
aluminum nitrate: Al(NO₃)₃
ammonium nitrate: NH₄NO₃
Now to write a chemical equation
- we have to write the chemical formulas or formula unit of each compound
- write the reactant on left side of the arrow
- write the product on the right side of the arrow
- put a plus sign in 2 reactants and products on each side of the arrow
- balance the equation by putting coefficient with compound formula
- write the phase symbols on the right corner of the compound formula in brackets
So the Reaction will be
(NH₄)₃PO₄ + Al(NO₃)₃ -----------→ AlPO₄ + NH₄NO₃
Now balance the Chemical equation
(NH₄)₃PO₄ + Al(NO₃)₃ -----------→ AlPO₄ + 3NH₄NO₃
Now write the phase Symbols
(NH₄)₃PO₄ (l) + Al(NO₃)₃(l) -----------→ AlPO₄(l) + 3NH₄NO₃(l)
all compounds in the reaction are in liquid form and soluble in water
*** Note:
There is no aluminum nitrite in chemicals formulas
Also ammonium nitrite can not be used in pure isolated form due to its highly instability
Answer and explanation :
DIFFERENCE BETWEEN HOMOGENEOUS AND HETEROGENEOUS MIXTURE :
- In homogeneous mixture the component which are present in the mixture all are in the same proportion whereas in heterogeneous mixture the component which are present in the mixture don't have the same proportion
- We can not pick out the component of homogeneous mixture but in heterogeneous mixture we can pick out the components from the mixture
- Example of homogeneous mixture is water, oil ,water sugar solution, milk blood etc. And example of heterogeneous mixture is solution of sand and water ,concrete etc.