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Nobody; exothermic reactions exist independent of our will.
Wiki User
∙ 9y ago
Wiki User
∙ 10y agophysical change and chemical change we discovered by n number of experiments it was a single scientst who had discovered .
Wiki User
∙ 7y agoI suppose that chemical reactions are old as humankind.
Wiki User
∙ 11y agoin 1907 a teacher named luis istolar
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Is Cleaning a painted surface with acid a chemical or physical change?
Chemical broooooooooooooooo niga
Is peeling an apple a physical or chemical change?
it is a chemical change
Is crushing charcoal into powder a physical or chemical change?
Chemical I think
Is a wet handkerchief is physical or chemical change?
physical as the chemical structure does not change.
Is ripping your jeans chemical or physical change?
Physical - there are no chemicals involved
Is Cleaning a painted surface with acid a chemical or physical change?
Chemical broooooooooooooooo niga
Is peeling an apple a physical or chemical change?
it is a chemical change
Is crushing charcoal into powder a physical or chemical change?
Chemical I think
Is a wet handkerchief is physical or chemical change?
physical as the chemical structure does not change.
Is stapling an envelope a physical change or chemical?
A physical change
Is ripping your jeans chemical or physical change?
Physical - there are no chemicals involved
Is reacting a physical change or chemical change?
Chemical change
Is filtering air to remove dust and pollen a physical or chemical change?
It’s a physical change 😑
What is building a tower of magnetic blocks Physical or chemical change?
physical change
Is squeezing a lemon a physical or chemical change?
It's a physical change why are some people f$#@%ing stupid and saying a chemical change??
Is painting a door a physical or chemical change?
Physical change of the paint, not the door.
Is Butter melting in a pan physical or chemical change?
Melting is a physical change.
