2.19 describe the reactions of magnesium, carbon and sulfur with oxygen in air, and the acid/base character of the oxides
produced
Equation
|
Observation
|
Oxide
Appearance
|
Acid or
Base?
|
2Mg(s) + O2(g)
→ 2MgO(s)
|
bright white
flame
|
white solid
|
base
|
C(s) + O2(g)
→ CO2(g)
|
red glow
|
colourless gas
|
acid
|
S(s) + O2(g)
→ SO2(g)
|
blue flame
|
colourless gas
|
acid
|
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