Magnesium ribbon burns in air producing intense light and heat. A white powdery substance is left behind.
What type of reaction is this?
a. Physical change
b. Chemical change
c. Reversible change
d. Temporary change
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answer is b) chemical change
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Answer:
b. Chemical change
Magnesium ribbon is a elemental form,after burning in the presence of oxygen in air , it changes to magnesium oxide that is a powder form as there is a formation of chemicals there is a breakdown of chemical bond. so it is considered as chemical change.
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