Question

take a small piece of magnesium in a test tube. add a few drops of dilute hydrochloric acid in it. chemical reaction takes place . you can see bubbles of a gas rising up
touch the bottom of the test tube it is hot why​

Answer 1

Answer:

Magnesium reacts with dilute hydrochloric acid in a conical flask which is connected to an inverted measuring cylinder in a trough of water. The volume of hydrogen gas produced is measured over a few minutes, and the results are used to plot a graph

This is intended as a class practical. It is best if the students work in pairs because setting up and starting the experiment requires more than one pair of hands. One student can add the magnesium ribbon to the acid and stopper the flask, while the other starts the stopclock. During the experiment, one student can take the readings while the other records them. The experiment itself takes only a few minutes. But allow at least 30 minutes to give students time to set up, take readings and draw graph.

Hydrogen gas (extremely flammable) is generated in the experiment. Students should not have access to any source of ignition.

Answer 2

Answer:

the answer is above you can check it