CHAPTER 13. PHYSICAL AND CHEMICAL CHANGE 13.3
a.(NH 4 ) 2 CO 3 →NH 3 +CO 2 +H 2 O
b. N 2 (g) + 3H 2 (g)→ 2 NH 3 (g)
c. CaCO 3 →CaO+CO 2
5. For the following equation: CaCO 3 (s)→CaO+CO 2 show that the law
of conservation of mass applies. Draw sub-microscopic diagrams to rep-
resent this reaction.More practice video solutions or help at http://www.everythingscience.co.za(1.) 005b (2.) 005c (3.) 005d (4.) 005e (5.) 005fChemistry: Chemical change 229