When HCl reacts with Na2CO3 and H2O, what is created? More specifically, what are the crystals that remain?

The questions that I need to answer:
4) What is the shape of the crystals of the product?
5) Have you seen crystals like these before, where?

I wasn't able to see the result of my experiment, because I was absent the following class.

You asked the same question yesterday. I answered it then.

Look at a salt shaker for further guidance.

When HCl (hydrochloric acid) reacts with Na2CO3 (sodium carbonate) and water (H2O), a chemical reaction takes place. This reaction is known as a double displacement or metathesis reaction. Let's break down the reaction and determine the products formed.

The balanced chemical equation for the reaction between HCl and Na2CO3 is:
2 HCl + Na2CO3 -> 2 NaCl + H2CO3

In this equation, HCl reacts with Na2CO3 to form NaCl (sodium chloride) and H2CO3 (carbonic acid). However, carbonic acid is unstable and quickly decomposes into water (H2O) and carbon dioxide (CO2).

So, the overall reaction can be simplified as:
HCl + Na2CO3 + H2O -> NaCl + H2O + CO2

Now, let's address your specific questions:

4) What is the shape of the crystals of the product?
The product of this reaction, sodium chloride (NaCl), typically forms colorless, cubic or octahedral-shaped crystals. Sodium chloride is a common salt, and its crystals often have a symmetrical, geometric shape.

5) Have you seen crystals like these before, where?
Sodium chloride is a widely used salt, and its crystals can be found in various places. Some common examples include table salt, rock salt, and salt deposits in salt mines or salt pans. You may have encountered sodium chloride crystals while cooking, seasoning food, or visiting natural salt formations.

Since you were absent for the class when the reaction took place and you weren't able to see the result, you can still refer to the general characteristics of sodium chloride crystals based on its well-known properties.

Remember, safety precautions should always be followed when working with chemicals, especially acids.