Answer:
Hoà tan 20,8g BaCl2 vào nước được 0,5l dung dịch. Nồng độ của ion Cl- trong dung dịch?
Answer:
True
Explanation:
Any substance dissolving a solid (salt) in liquid (water) is a physical change.
Salt in water, is a physical change because only the state of the matter has changed.
I think it's B. Independent Variable. i hope i've helped
It is a neutralization reaction.