a. Describe one piece of evidence that a chemical reaction occurs when baking soda is
added to vinegar. (2 sentences required)

Question

a. Describe one piece of evidence that a chemical reaction occurs when baking soda is 
added to vinegar. (2 sentences required)

anonymous · Answer

@ryanvarghese12790

anonymous · Answer

please help

anonymous · Answer

After the fizzing stops, the students determine that the liquid in the flask has a 
mass of 105 g. The students thought something was wrong.

anonymous · Answer

1. Pour 100 g vinegar into a flask. A flask looks like this.
2. Measure the temperature of the vinegar.
3. Add 10 g of baking soda to the flask.
4. Observe as the contents of the flask fizz (produce bubbles).
5. Measure the temperature of the contents in the flask and observe any change in 
temperature.

anonymous · Answer

The acidic acid (vinegar) reacts with the sodium hydrogen carbonate (baking soda) to produce carbonic acid. This, decomposes to make water and carbon dioxide.

anonymous · Answer

cxan you help with more

anonymous · Answer

the 5 grams would have been the carbon dioxide that was released.

anonymous · Answer

How could the students change their experiment to make it more accurate? 
Describe how the change the activity so that the total mass of all the products is 
the value you calculated in part (b). Explain your reasoning. (2 sentences required)

anonymous · Answer

@ryanvarghese12790

anonymous · Answer

don't quote me on this one but, they could send the Carbon dioxide to another test tube so, the carbon dioxide doesn't escape.

anonymous · Answer

ok thanks this helps alot