Question

फिजिकल एंड केमिकल चेंजेजक्या किसी को इसके बारे में कुछ पता है मुझे जरूरत है एक चैप्टर इंफॉर्मेशन के बारे में ​

Answer 1

cooker mein se chane nikal diye aur khaali cooker gas per chadha diya

Answer 2

Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.