Question

how can we say that any change which caused is a chemical reaction or not?​

Answer 1

Answer:

Answer:$<p style="color:cyan;font-family:cursive;background:black;font size:40px;">The following can indicate that a chemical change has taken place, although this evidence is not conclusive: Change of odor. Change of color (for example, silver to reddish-brown when iron rusts). Change in temperature or energy, such as the production (exothermic) or loss (endothermic) of heat.......brainlist bro....guys like and follow me....</p>$

Answer 2

Answer:

yes we can say that change is happens.

1)change in state.

example:ice

first it is in solid state the converted inwater then gas.

so here change in state is happen.

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