Pure water is very close to a pH of 7. The Great Salt Lake (from what I've read about) can range from 8.2 to 7.7 in different areas. Saliva is between 6.5 and 7.5. And ammonia has a pH of 11.
So the items that have a pH between 5 and 8 are pure water, saliva, and possibly the Great Salt Lake.
This is the chronicle of evolution over millions of years of geologic time engraved in the order which fossils appear in rock strata.
An enzyme. An enzyme is a protein speed up a biochemical reaction. It’s a catalyst.
Hope this helps :)
Answer:
its either A or D I think that it's a but im not 100%sure
Answer:
sour, corrosive
Explanation:
An acid is a substance that donates hydrogen ions. Because of this, in an acidic solution there are more hydrogen ions than hydroxide ions. This means the more acidic a food is, the more hydrogen ions are available to trigger the sour taste receptors. A base is a substance that accepts hydrogen ions.
