kaili2268
contestada

Which of these is an indication that a chemical reaction has occurred?
A) formation of a gas
B) boiling of a substance
C) melting of a substance
D) freezing of a substance

Respuesta :

Slipknot
" formation of a gas" Is the answer you are looking for this is because the chemical change can happen without freezing melting or boiling a substance

faithcraftt
Hi! The answer to this question would be B. The boiling of a substance. xx

Otras preguntas