When magnesium is burnt, heat and light are produced. The burning of magnesium is a:
A. reversible change
B. physical change
C. chemical and exothermic change
D. chemical and endothermic change
Answer:C
When magnesium is burnt, heat and light are produced. The burning of magnesium is a:
A. reversible change B. physical change C. chemical and exothermic change D. chemical and endothermic change