The products and reactants weigh the same since u have to balance out the equation to have an equal number of molecules on bothsides
More positive ions shows acidic whereas more negative ions indicates basic solution.
<h3>Which charge show acidic solution?</h3>
That side which has more positive charges is considered as acidic solution while on the other hand, that region where negative charges are present in large number as compared to positive charges is considered as basic or alkaline solution.
So we can conclude that more positive ions shows acidic whereas more negative ions indicates basic solution.
Learn more about charge here: brainly.com/question/25923373
#SPJ1
Answer:
2CuBr +1 F2 ----> 2CuF + 1 Br2
Explanation:
2CuBr +1 F2 ----> 2Cuf + 1 Br2
Check answer
Cu is 2 Cu is 2
Br is 2 Br is 2
F is 2 F is 2
Answer: one that has an unstable nucleus
Explanation:
Answer: 0.028 grams
Explanation:
Depression in freezing point :
Formula used for lowering in freezing point is,
![\Delta T_f=k_f\times m](https://tex.z-dn.net/?f=%5CDelta%20T_f%3Dk_f%5Ctimes%20m)
or,
![\Delta T_f=k_f\times \frac{\text{ Mass of solute in g}\times 1000}{\text {Molar mass of solute}\times \text{ Mass of solvent in g}}](https://tex.z-dn.net/?f=%5CDelta%20T_f%3Dk_f%5Ctimes%20%5Cfrac%7B%5Ctext%7B%20Mass%20of%20solute%20in%20g%7D%5Ctimes%201000%7D%7B%5Ctext%20%7BMolar%20mass%20of%20solute%7D%5Ctimes%20%5Ctext%7B%20Mass%20of%20solvent%20in%20g%7D%7D)
where,
= change in freezing point
= freezing point constant (for benzene} =![5.12^0Ckg/mol](https://tex.z-dn.net/?f=5.12%5E0Ckg%2Fmol)
m = molality
Putting in the values we get:
![0.400^0C=5.12\times \frac{\text{ Mass of solute in g}\times 1000}{354.5\times 209.0}](https://tex.z-dn.net/?f=0.400%5E0C%3D5.12%5Ctimes%20%5Cfrac%7B%5Ctext%7B%20Mass%20of%20solute%20in%20g%7D%5Ctimes%201000%7D%7B354.5%5Ctimes%20209.0%7D)
![{\text{ Mass of solute in g}}=0.028g](https://tex.z-dn.net/?f=%7B%5Ctext%7B%20Mass%20of%20solute%20in%20g%7D%7D%3D0.028g)
0.028 grams of DDT (solute) must be dissolved in 209.0 grams of benzene to reduce the freezing point by 0.400°C.