Author Question: ____________________ contains high concentrations of dissolved calcium and magnesium ions which can ... (Read 112 times)

abern

  • Hero Member
  • *****
  • Posts: 533
___________________ _ contains high concentrations of dissolved calcium and magnesium ions which can form precipitates on pipes, water heaters, and dishes.
 Fill in the blank(s) with correct word

Question 2

The particularly cold summer of 1816 was attributed to the huge eruption of Tambora in 1815 in Indonesia. In North America, 1816 was called ___________________ _.
 Fill in the blank(s) with correct word



matt95

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

Hard water

Answer to Question 2

The Year Without a SummerEighteen Hundred and Froze to Death



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

For a complete list of videos, visit our video library