For example, pH 10 is ten times more alkaline than pH 9 and 100 times (10 times 10) more alkaline than pH 8. Pure water is neutral. But when chemicals are mixed with water, the mixture can become either acidic or basic. Examples of acidic substances are vinegar and lemon juice.
For Office 2013, the lineup of packages available through retail channels remains the same, but Microsoft is bumping prices significantly. Office Home & Student, which includes Word, Excel, PowerPoint, and OneNote, will cost $140, up 17% from the current $120. Office Home & Business, which includes the above apps plus Outlook, will go for $220, up 10% from the current price of $200.
With the top-of-the-range Office Professional, the Key Card cuts the suggested price from Â£429.99 to Â£299.99. The familiar Office Home and Student version continues with, again, the addition of OneNote and Office Web Apps. 2010 prices will be Â£109.99 for a boxed copy and Â£89.99 for the keycard. Members of a family can install this version on three PCs. The cheapest version of Office 2010 will be free, but only when pre-installed on a new PC from selected PC manufacturers.