The equation below could be best read as _____.

H2(g) + Cl2(g) --> 2HCl(g)

is the last part hydrochloric acid or hydrogen chloride??

YOU don't give us much to go on but I would read it as

"1 mol hydrogen gas plus 1 mol chlorine gas produces 2 mols hydrogen chloride gas".

Okay thank you I was confused by the last part.

The equation H2(g) + Cl2(g) --> 2HCl(g) represents a chemical reaction. It can be read as "Hydrogen gas (H2) reacts with chlorine gas (Cl2) to produce two molecules of hydrogen chloride gas (2HCl)."

To understand the equation and its meaning, you need to know a few things:

1. Chemical Symbols: H represents hydrogen, Cl represents chlorine.
2. State Symbols: (g) indicates that the substances are gases.

Using this information, you can break down the equation as follows:

H2(g) + Cl2(g)
This part of the equation shows the reactants. It means that hydrogen gas and chlorine gas are reacting together.

-->
The arrow (--> or →) indicates the direction of the reaction. It separates the reactants from the products.

2HCl(g)
This part of the equation shows the products. It means that two molecules of hydrogen chloride gas are being produced.

In summary, the equation states that hydrogen gas and chlorine gas react to form hydrogen chloride gas.