This question relates to the video you watched above (the reaction of citric acid with sodium hydrogen carbonate) or the reaction you performed yourself. As the citric acid was added to the sodium hydrogen carbonate solution bubbles/fizzing was observed. Which of the following best describes what caused these bubbles? [1 mark]Question 4Answera.formation of carbon dioxide gas as a product of an acid/active metal reactionb.formation of hydrogen gas as a product of an acid/carbonate reactionc.formation of carbon dioxide gas as a product of an acid/carbonate reactiond.formation of hydrogen gas as a product of an acid/active metal reactione.formation of oxygen gas as a product of an acid/carbonate reaction
Question
This question relates to the video you watched above (the reaction of citric acid with sodium hydrogen carbonate) or the reaction you performed yourself. As the citric acid was added to the sodium hydrogen carbonate solution bubbles/fizzing was observed. Which of the following best describes what caused these bubbles? [1 mark]Question 4Answera.formation of carbon dioxide gas as a product of an acid/active metal reactionb.formation of hydrogen gas as a product of an acid/carbonate reactionc.formation of carbon dioxide gas as a product of an acid/carbonate reactiond.formation of hydrogen gas as a product of an acid/active metal reactione.formation of oxygen gas as a product of an acid/carbonate reaction
Solution
The correct answer is c. formation of carbon dioxide gas as a product of an acid/carbonate reaction.
Here's why:
When an acid reacts with a carbonate, a salt, water, and carbon dioxide gas are produced. In this case, citric acid (the acid) reacts with sodium hydrogen carbonate (the carbonate) to produce a salt (sodium citrate), water, and carbon dioxide gas. The bubbles or fizzing you observed is the carbon dioxide gas being released. This is a common observation in acid-carbonate reactions.
Similar Questions
Why bubbles are produced when acetic acid is added to a solution of sodium hydrogen carbonate?
Name all the products formed in this reaction: sodium carbonate + nitric acid, and write down their chemical formulae.
When a substance is added to water, bubbles form. How can you confirm the type of change that took place?A.The formation of bubbles is confirmation that a physical change took place.B.Determining that the gas produced in the reaction was different from the original substance would confirm that a chemical change took place.C.The formation of bubbles is confirmation that a chemical change took place.D.Showing that the total mass of the reactants equaled the total mass of the products would confirm that a physical change took place.
Carbon Dioxide Formation
What are the products of a reaction involving an acid and a carbonate?Group of answer choicesSalt + oxygen + waterSalt + carbon dioxide + waterSalt + carbon + waterSalt + hydrogen gas
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.