Question

Which of the following is not a correct chemical equation for a double displacement reaction?

2 RbNO3 + BeF2 yields Be(NO3)2 + 2 RbF

CaCl + LiCO3 yields CaCO3 + LiCl

Na3PO4 + 3 KOH yields 3 NaOH + K3PO4

2 MgI2 + Mn(SO3)2 yields 2 MgSO3 + MnI4

Answer 1

i'd suggest you double check the formulas written, 1 is wrong

Answer 2

actually 2 are wrong

Answer 3

right?!?!?!

Answer 4

which would you pick?

Answer 5

i reallyy don't know what to choose

Answer 6

can you explain why?

Answer 7

we'll if you look at the formulas individually e.g. MgCl2

some are wrong, and thats where the problem lies

Answer 8

ok so thats referring to CaCl, and for answer C, isnt that also wrong?

Answer 9

yes, and no, C is fine

Answer 10

theres no precipitate for C

Answer 11

Which is the other error you pointed out then?

Answer 12

what would be the ppt in C?

Answer 13

there is none

Answer 14

A ppt is not needed for a double d reaction

Answer 15

it isn't? oh, yeah I just looked it up. its just happens to be a regular tendency. Thx for the help.

Answer 16

np!

Answer 17

double D's you say? :)