The two simplest sequences to work with are arithmetic and geometric sequences. An arithmetic sequence goes from one term to the next by always adding (or subtracting) the same value. For instance, 2, 5, 8, 11, 14,... is arithmetic, because each step adds three; and 7, 3, â1, â5,... is arithmetic, because each step subtracts 4.
Report Abuse. Yes pH is temperature dependent. So if you have water with a pH of 6.9 (very mildly acidic) at 12 C, and raise the temp up to about 22 C, the pH will reduce to about 6.7, which is more acidic. Jason, only pure water is neutral... most water you come across on a daily basis is not pure and doesn't have a pH of 7. derekbradley4000 Â· 8 years ago.
The lower the pH level the more acidic is the medium. Alkaline medium has a high pH level 7.1 to 14.0. The best water for drinking has a pH level 8.5 to 9.5. The best water for skin care has a pH level 4 to 6. Our body is slightly alkaline in nature, but about 80-90% of the food we eat is acidic and highly acidic, which leads to accumulation of acidic waste in the body.