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  2. Calcium carbonate - Wikipedia

    en.wikipedia.org/wiki/Calcium_carbonate

    As such water percolates through calcium carbonate rock, the CaCO 3 dissolves according to one of the trends above. When that same water then emerges from the tap, in time it comes into equilibrium with CO 2 levels in the air by outgassing its excess CO 2. The calcium carbonate becomes less soluble as a result, and the excess precipitates as ...

  3. Solubility table - Wikipedia

    en.wikipedia.org/wiki/Solubility_table

    The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water (g/(100 mL)), unless shown otherwise. The substances are listed in alphabetical order.

  4. Solubility chart - Wikipedia

    en.wikipedia.org/wiki/Solubility_chart

    The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.

  5. Carbonate hardness - Wikipedia

    en.wikipedia.org/wiki/Carbonate_hardness

    An aqueous solution containing 120 mg NaHCO 3 (baking soda) per litre of water will contain 1.4285 mmol/l of bicarbonate, since the molar mass of baking soda is 84.007 g/mol. This is equivalent in carbonate hardness to a solution containing 0.71423 mmol/L of (calcium) carbonate, or 71.485 mg/L of calcium carbonate (molar mass 100.09 g/mol).

  6. Solubility - Wikipedia

    en.wikipedia.org/wiki/Solubility

    A few, such as calcium sulfate and cerium(III) sulfate, become less soluble in water as temperature increases (ΔH < 0). [15] This is also the case for calcium hydroxide (portlandite), whose solubility at 70 °C is about half of its value at 25 °C. The dissolution of calcium hydroxide in water is also an exothermic process (ΔH < 0

  7. Personal bankruptcies are up. When does it make sense to file?

    www.aol.com/personal-bankruptcies-does-sense...

    "If you lost your job, file after you found a new job; if you have a health crisis, you file after you've gotten better to discharge all of the medical debt that you've racked up," said Foohey.

  8. Woman Issues Stern Warning After Senior Dog's Scary ... - AOL

    www.aol.com/woman-issues-stern-warning-senior...

    The bed seems like a good idea. It's big, it's furry, and it's pretty darn cute. It looks like a dog's paw.But it's not great for small dogs, as the woman learned recently.

  9. Are Dogs Lactose Intolerant? What Experts Advise About ...

    www.aol.com/dogs-lactose-intolerant-experts...

    Not all questions have simple, yes or no answers—including this one. While many dogs are lactose intolerant, many are not! Lactose intolerance develops as a dog grows up, so it can be impossible ...