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Which of the following is a clue of a chemical change?
A. iron changes color when heated
B. gas bubbles form in boiling water
C. balls of wax form when melted wax is poured into ice water
D. a gas forms when vinegar and baking soda are mixed

Respuesta :

nessia
The answer is D , when u mix the two ingredients it forms another by chemical reaction
Zonepax
The aswere is D.
Because its involve two material and causes reaction to make another form

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