Science Help Needed

[Rou]

I Dont Get It...

[Shadowrock!]

its B

becuz if you replace them with names

sodium = Y
pottasium = X
francium = Z

X, Y and Z represent 3 halogens
Y displaces X from a solution of its ions
Z does not displace X or Y from solutions of their ions
What is the order of their reactivities?
A - X Y Z
B - Y X Z
C - Y Z X
D - Z X Y

if Y displaces X that means it has a higher reactivity. that means that Y is now top... but Z doesent displace X or Y, so Y is the highest. that means you only have b and c.

But Z doesent displace X either, so Z must be the least reactive that leaves you with.

Y - X - Z

[Ste471]

That question wasnt exactly clear either didnt didnt say whether it wanted it from least reactive to most reactive or the other way round.

If I had answered it i would have got it wrong because i would have gone least to most

[Rou]

Makes No Sence To Me

[!-.Scammed.-!]

I'm Going Into Yr 7!

Lol!!!!

[samuel]

More like college math o.o
im only 13.