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45 votes
How do you know that a chemical change has happened

User Sanchit Grover
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2 Answers

24 votes
24 votes

A substance is there now that wasn't there before. (And you didn't put it there.,)

User William Smith
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18 votes
18 votes

Answer:

theres is many states of chemical change but its not exaclty the same as physical the appearence might change alittle but chemical like frying a egg is a chemical change because a change of materials into another, new materials with different properties and one or more than one new substances are formed and the subtance changeing or the materials can show chemical changed happened you cant always see it but touching too like heat energy can show a chemical change

Step-by-step explanation:

i hope this helps and keep ur grades up :)

User Mauro De Biasio
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