Flasks Observations
NaHCO3 before reaction
HCl before reaction
HCl Flask DURING reaction
HCl Flask AFTER reaction
Question: How did you observe NaCl being formed as a product/after the reaction?
a. It formed into solid salt structures.
b. There was foaming as NaCl dissolved.
c. There were bubbles of gas in the reaction.
Selected:d. All of the above were signs of NaCl being formed.
d. All of the above were signs of NaCl being formed.
The correct answer is d. All of the above were signs of NaCl being formed.
Observing solid salt structures, foaming as NaCl dissolves, and bubbles of gas in the reaction are all indications that NaCl is being formed.
To observe the formation of NaCl as a product after the reaction, you can look for several different observations. In this case, the options provided are:
a. It formed into solid salt structures.
b. There was foaming as NaCl dissolved.
c. There were bubbles of gas in the reaction.
d. All of the above were signs of NaCl being formed.
To determine which of the options is correct, you would want to review the observations you made in the flasks:
- NaHCO3 before the reaction: This flask contains the sodium bicarbonate before the reaction occurs. It does not indicate the formation of NaCl.
- HCl before the reaction: This flask contains hydrochloric acid before the reaction occurs. It does not indicate the formation of NaCl.
- HCl Flask DURING the reaction: This flask contains HCl while the reaction is taking place. In this flask, if you observe solid salt structures, foaming as NaCl dissolves, or bubbles of gas, it would indicate the formation of NaCl as a product.
- HCl Flask AFTER the reaction: This flask contains HCl after the reaction has completed. Similarly, if you observe solid salt structures, foaming as NaCl dissolves, or bubbles of gas, it would indicate the presence of NaCl as a product.
Based on the observations made in both the HCl Flask DURING the reaction and HCl Flask AFTER the reaction, if you noticed any of the described signs (solid salt structures, foaming as NaCl dissolves, or bubbles of gas), then d. All of the above were signs of NaCl being formed is the correct answer.