2. From the drop box, what is the most basic substance in this simulation? What is its pH value?

3. What substance(s) have a pH most similar to that of water (pH 7)?

4. What two substances have the same pH value? Why might this be?

5. Being that vomit has a pH of 2.0, would you believe the human stomach be an acidic or
basic environment? Why might this be?

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.