THERMAL DECOMPOSTION OF CAROBONATES

Question 1

does thermal stability increase or decrease going down group 2?

Answer 1

increases

Question 2

what does it mean if a substance is more thermally stable?

Answer 2

more heat is required to break it down

Question 3

what are carbonate ions?

Answer 3

large anions

Question 4

what are metals?

Answer 4

large cations

Question 5

what happens to anions if a cation is present?

Answer 5

the cation can make the anion unstable(carbonate)

Question 6

explain what happens if a carbonate ion is in prescne of a metal

Answer 6

the metal draws electrons from carboanate ion to itsled –>distrotss the carbomate iomn–>makes carbonate ion unstable

Question 7

what happens if theres a lot of distortion of a carbomate ion?

Answer 7

the carbonate ion is more unstable

Question 8

explain the distortion of carbonate ions like going down the group?

Answer 8

less distortion–>larger cations (positive metal) –>lower charge density–>less attraction of electrons to metal –>less distortion–>carbonate more stable