Will chlorine water react with potassium fluoride solution? if not, why?

Answer : The chlorine water will not react with potassium fluoride solution because chlorine is less reactive halogen than the fluorine.

Explanation :

Displacement of halogen : If halogen is added to the solution of compound containing a less reactive halogen then it will react with compound and form a new product. This is also known as displacement reaction.

For example : Fluorine water react with sodium chloride solution to give sodium fluoride as chlorine water as a product.

The balanced chemical reaction will be:

In this reaction, a most reactive halogen (fluorine) displace a less reactive halogen (chlorine).

According to the question,

Chlorine water react does not react with potassium fluoride solution because chlorine is less reactive halogen than the fluorine. So, it will not displace fluorine halogen form the solution.

28. evolution

29. environment, survive, offspring  

explanation:

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s