The answer would be E, it shows students how the different environments appear, since you can visually see it.
To identify a precipitation reaction and predict solubilities. ... solution of potassium dichromate to give a reddish precipitate of ... When aqueous solutions of silver nitrate and potassium dichromate are ...
Missing: AgNO2+
Answer:
a pencil being sharpened
freezing water
boiling water
Explanation:
a physical change doesn't change the chemical structure of an object. That is why the other 2 are wrong
Answer: Gas. Gas vibrates and move freely at high speeds.
Explanation:
C. Cello playing music at a concert
