Question

Question:-

➜list five observations that helps us to determine whether a chemical reaction has taken place.

⸙ᴅᴏɴ'ᴛ sᴘᴀᴍ​

Answer 1

Answer:

• Change of the temperature.
• Change of the mass.
• Change of colour, physical state or smell.
• Generation of noise.

Answer 2

$\huge \bf \underline{ \underline{☄ Question}}$

➜list five observations that helps us to determine whether a chemical reaction has taken place.

$\huge \bf \underline{ \underline{☄ Answer}}$

Change in colour.

Evolution of gas.

Change in temperature.

Formation of precipitate.

Change in pH.

Hope you are satisfied ^_^