Question

During a chemistry demonstration, a student added liquid hydrochloric acid, HCl, to a beaker holding powdered baking soda, NaHCO3. The solution in the beaker began to bubble and fizz as carbon dioxide gas, CO2, escaped. How did combining a liquid and a solid produce a gas?

Group of answer choices

Adding the hydrochloric acid to the baking soda superheated the baking soda, causing it to change phases.

The atoms in the hydrochloric acid and baking soda combined, forming a product with a different state but the same properties.

The atoms in the hydrochloric acid and baking soda rearranged, forming products with different properties.

Adding the hydrochloric acid to the baking soda superheated the hydrochloric acid, causing it to change phases

Answer 1

What do you think?
A is wrong because superheating is something entirely different and involves heating. This is an acid base reaction
B is not true, there is no state change. It's a chemical reaction where new bonds are formed. IMFs are not under consideration
C is correct. In all reactions, bonds are broken and are rearranged amongst the same atoms.
D wrong like I said.

Answer 2

thank you, I had thought c or d.

Answer 3

D is wrong. Always remember that phase changes have to do with IMFs and lattice energies, not with bonding.

Answer 4

okay thanks:)