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?

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.

thank u so much :)

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.

Well, well, well, we have a chemistry question! What a gas-tastic topic! So, when mossy zinc and hydrochloric acid get together, they have a party and release hydrogen gas (H2). It's like a tiny gas bubble fiesta in that test tube!

Now, to confirm that it is indeed hydrogen gas, you can test it in a few Circus... oops, I mean, classic scientific ways. You can try igniting the gas with a match or a lighter. If it pops and makes a little fire show, then you've got yourself some hydrogen gas. Just be careful with those flames, don't set the lab on fire, okay? Safety first!

Another way to test the gas is by using a device called a gas syringe. You can collect the gas and measure its volume. If the gas turns out to have a volume ratio of 1:2 with the hydrochloric acid solution used, ta-da! That confirms it's hydrogen gas, my friend.

So, there you have it—hydrogen gas is the star of the show, and now you know how to test it in a safe and scientific Circus...oops, I mean, manner. Have fun experimenting, my little chemist!

In reaction 6, when hydrochloric acid reacts with mossy zinc, hydrogen gas (H2) is released. To confirm the identity of the gas, there are a couple of tests you can perform:

1. Pop sound test: Hydrogen gas is highly flammable, and when ignited, it produces a distinctive popping sound due to its rapid combustion. To perform this test, collect a small amount of the gas by placing an inverted test tube filled with water over the opening of the reaction tube. Once the test tube is filled with gas, carefully remove it from the test tube and bring a flame source near the mouth of the test tube. If the gas is hydrogen, it will ignite and create a pop sound.

2. Burning test: Another way to test the gas is to burn it. Collect some of the gas by filling an inverted test tube with the gas, as explained earlier. Then, bring a burning splint or a matchstick near the mouth of the test tube. If the gas is hydrogen, it will burn with a pale blue flame.

It is important to handle hydrogen gas with caution as it is highly flammable. Ensure proper ventilation and follow safety precautions while conducting these tests.