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.
Normally, the per-hour costs for those platforms are higher -- in many cases, much higher. For instance, SQL Standard is typically $.64 per hour, and SQL Enterprise is $2.19 per hour. Microsoft is going even further than that, actually giving developers a monthly credit for Azure test/dev usage. Depending on the level of MSDN subscription, a developer will get between $50 - $150 toward Azure usage.