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.
Most tap water has a neutral PH level of approximately 7 whereas most filtered (bottled, reverse osmosis, distilled, etc.) water has an acidic PHâ0 to 6. In contrast our water has a high alkaline PHâ9 to 10.5. Itâs unfortunate however that most of the drinking water we have access to is acidic due to heavy pollution of todayâs water sources. Our bodies require natural alkaline water to counteract the acidic foods/drinks we consume along with the acidic pollutants we breathe in the air.