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Please help me please ​

Please help me please ​-example-1

1 Answer

6 votes

Answer #1:

Physical.

Step-by-step explanation:

The only thing mentioned to change is the color. Nothing about the gas in general is changing

Answer #2:

Chemical.

Step-by-step explanation:

The fact this interacted with another element to completely turn something else rather than just being that color makes this a chemical change.

Answer #3:

Physical

Step-by-step explanation:

Well, how does an element's density have to do anything with a chemical change?

Answer #4:

Chemical.

Step-by-step explanation:

Fire/heat is involved, and it makes it change states.

User Eric Farraro
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