thermal decomposition of nitrates n carbonates
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Last updated 10:53 AM on 9/11/25
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4 Terms
1
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carbonates
XCO3 (s) XO (s) + CO2 (g)
MgCO3 (s) MgO (s) + CO2 (g)
2
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nitrates
X(NO3)2 (s) XO (s) + 2NO2 (g) + ½O2 (g)
OR
2X(NO3)2 (s) 2XO (s) + 4NO2 (g) + O2 (g)
brown fumes is toxic
2Ca(NO3)2 (s) 2CaO (s) + 4NO2 (g) + O2 (g)
3
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trend in thermal stabilities
increases down the group
anions become more polarised
more polarised = more likely to thermally decompose as the bodns become weaker in the cabrpante and nitrate ions
4
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b
Note 
Flashcards (33)