Question

which is the gas formed when the substances react in the bottle ​

Answer 1

Answer:

The hydrogen gas.................

Answer 2

which is the gas formed when the substances react in the bottle ​

Explanation:

1. The gas collected inside the bottle is not pure.it is a mixture of the product gas and vapor.
2. all liquids have a measurable amount of vapor in equilibrium with the liquid.
3. the vapor thus exerts a pressure the liquid which is called the liquids vapor pressure.
4. Sea shells are made from calcium carbonate. so when  calcium carbonates reacts with hydrochloric acid, carbon dioxide fueloline is formed.
5. CaCO₃ + 2HCL ⇒ CaCl₂ +CO₂ + H₂O