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.
Comparatively, the Office 2013 version of Windows cost $140 for Home & Student, $220 for the Home & Business edition and $400 for Office 2013 Professional. Office for Mac Home & Student 2011 cost $120 and $200 for Home & Business. A subscription to Office 365 Personal -- which includes Office 2016 (Word, Excel, PowerPoint, OneNote, Outlook, Publisher and Access -- for installation on one PC or Mac (plus one phone) is $70 per year.