Question

Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3) to produce a gas that turns limewater chalky. In the experiment shown below, the hydrochloric acid has a concentration of 1.0 M while the mass of sodium carbonate used is 1.0 g.
(PLEASE REFER IMAGER BEFORE TRYING TO ANSWER AS IMAGE HAS THE DIAGRAM)



Which of the following statement(s) about this experiment is/are true?

1. The gas produced is carbon dioxide.
2. Using 1.0g of sodium carbonate in powder form will decrease the surface area to volume ratio.
3. Using warm hydrochloric acid will increase the rate of reaction.
4. Adding water to the conical flask will increase the rate of reaction.

Answer 1

Answer:

3. Using warm hydrochloric acid will increase the rate of reaction

Explanation:

this is correct