We had 3 different materials ; soda, milk, antacid. We added 3 ml of hydrogen peroxide to each test tube and then added three ml of soda into 1 and antacid to another and milk into the last one. We put 2 drops into the soda(the acid) and measured the pressure. We did the same thing with the the other two and the results came out with The acid: 101.71 kpa, The neutral: 99.36, and The base 101.35. I think the acid came out the highest because it was more carbonated so when it reacted with the peroxide and yeast it released more gas which caused the pressure. The milk was the thickest so it could have held in the pressure and the fact it was cold could have effected the results. The antacid got high because of it released all of the gas it had inside when it reacted with hydrogen peroxide and yeast.There was no physical change besides the color changed to a lighter and the soda bubbled a little (probably because of the carbonation reacting) But other than that nothing happened.
1) The reaction was greatest in the soda because it had the most pressure because when put together with the yeast and hydrogen peroxide it released its carbonation into a gas which causes the pressure.
2)The yeast reacted the least in milk probably because of its thickness and because it was cold didn't release any pressure.
3)I found that acids have a bigger reaction with the hydrogen peroxide and yeast and bases have a slighter less reaction but still pretty big and neutrals have a relatively small reaction compared to the acids and bases.
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