It takes 1 minute for a certain amount of potassium phosphate (KH2PO4) to dissolve in 100 grams of water at 50°c. Which of the following will most likely happen if the same sample of potassium. phosphate is dissolved in 100 grams of water at 20°C?

A- The sample will dissolve in exactly 1 minute
B- The sample will dissolve in more than 1 minute
C- The collision between particles of the sample will increase
D- The collision between particles of the sample will remain constant

The phase where ice changes directly to gas is called sublimation 

Electron equations of the given changes are as follow,a)                              cu      →      cu⁺²  + 2e⁻b)                              mg⁺²  +  2 e⁻      →      mgc)                              cl⁻    →      cl  +  1e⁻d)                              s  +  2 e⁻    →      s²⁻e)                                o²⁻      →      o  +  2 e⁻f)                              p  +  3 e⁻    →      p³⁻g)                              fe²⁺    →      fe³⁺  + 1 e⁻h)                              s²⁻    →      s⁴⁺  +  6 e⁻

We are not here to write essays for people. this is something that you decide and share your opinions on yourself. just do some brainstorming and if all else fails just make something up.

Iknow this i just forgot the name