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Sedaia [141]
3 years ago
11

Ben and Jerry were testing powders in science lab. First they put the powder in a zip lock bag. Next they added some water. The

powder fizzed and bubbled; soon it disappeared. When the bubbling stopped the bag contained a clear liquid and a lot of gas.
What is the MOST OBVIOUS sign of a chemical change in this reaction?
Chemistry
2 answers:
ch4aika [34]3 years ago
6 0
The powder fizzled and bubbled; soon it disappeared.
fgiga [73]3 years ago
3 0
The most obvious one is that when the powder came into contact with the water it fizzed.
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