Answer:
B
Explanation:
triple beam balance
sorry if i am wrong! can be brainliest?
The volume is directly proportional to the absolute temperature so the answer is A.
Answer:
A penny dissolves in hydrochloric acid if the copper coating is filed down in several spot... ... When The Zinc In A Certain Penny Dissolves, The Total Volume Of Gas ... is filed down in several spots (so that the hydrochloric acid can reach the zinc). The reaction between the acid and the zinc 2H+(aq)+Zn(s)→H2(g)+Zn2+(aq) .
Its doesn't dissolve in water!