Answer:
No, it's a physical reaction.
Explanation:
A chemical change produces new chemical compounds, but combining water and powder is just mixing the powder with the water. It's not a new compound.
I don't know how to really explain, sorry :)
Answer:
C
Explanation:
This is a correct answer i think soo
Spontaneous at low temperatures.
Probably when u close your eyes you’d see black or whenever you about to past out
