Question

Reaction 6

1. Place a piece of mossy zinc in a test tube

2 add hydrochloric acid solution to the test tube until the mossy zinc is completely covered

What gas was released in reaction 6 and how could you test the gas to confirm its identity?

Answer 1

H2 gas is released. You can test it by collected some of the gas in a test tube (it is lighter than air so it floats UP) and hold a lighted match at the mouth of the test tube. A slight explosion shows the presence of H2 gas.
Zn + 2HCl ==> H2 + ZnCl2.

Answer 2

thank u so much :)

Answer 3

Drop a piece of mossy zinc in 3 mL of HCI in a test tube. Observe and result. Write the chemical equation and indicate the type of chemical reaction.