Metals bond with halogens to form colorless metal halides. During an experiment. chlorine water was added to a solution of potassium bromide. Arecord of the experiment is shown
Experimental Record
Reactants Color of Reactants
Color of Reactants after Mixing
Cl
Colorless solution
Deep yelow-orange colored solution is formed
KBr
Colorless solution
Which of the folowing conclusions can be made about this chemical reaction based on the data?
O Chlorine is more reactive than bromine.
O Potassium bromide and chlorine do not react
O Potassium metal is formed from a single replacement reaction.
O Bromine solution is colorless and is formed due toa single replacement reactio

If a || b and e || f, what is the value of y ?

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots