Chemistry, 09.07.2019 20:00 sil91

Scientists are studying how substance a and substance b react. when substance a and b are mixed, a substance different from a and b floats to the top of the solution. this is evidence that a(n) question 6 options: a. chemical change occurred. b. irreversible change occurred. c. endothermic change occurred. d. physical change occurred.

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Scientists are studying how substance a and substance b react. when substance a and b are mixed, a s...