A. Melting ice to obtain water
B. evaporating alcohol into vapor
C. drying wood in a shed
D. buring coal in a furnace
2006-07-22 05:59:13 · 6 answers · asked by Anonymous in Education & Reference ➔ Homework Help
burning coal in a furnace will lead to the formation of CO2 which is completely different from carbon and so is a chemical/permanent change
C(s)+O2(g)=CO2(g)+heat
a permanent change involving energy change
so the choice is D
2006-07-22 07:34:46 · answer #1 · answered by raj 7 · 2⤊ 0⤋
(d)
burnin the coal convert the carbon or any other impurity present in it to its oxide
burnin any thin is rxn involvin oxidation of substance being burnt
2006-07-22 13:12:23 · answer #2 · answered by theboss 1 · 0⤊ 0⤋
Only D.
I gather you meant burn not burying.
2006-07-22 13:02:59 · answer #3 · answered by Anonymous · 0⤊ 0⤋
D
2006-07-22 14:36:29 · answer #4 · answered by jamaicadogcolor 2 · 0⤊ 0⤋
D..
2006-07-22 13:59:50 · answer #5 · answered by pharell 1 · 0⤊ 0⤋
D.
2006-07-22 13:02:22 · answer #6 · answered by ? 5 · 0⤊ 0⤋