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Hard water refers to the presence of dissolved ions, mainly of calcium Ca2+ and magnesium Mg2+ which are acquired through contact with rocks such as limestone and dolomite which contain calcium and ma ...
Hipervinculo Ciencias Sociales
Low glycemic foods, chocolate, and food that has high levels of omega-3 fatty acids, magnesium, tryptophan, folate and other B vitamins, have all been studied to evaluate their impact on mood. Results ...
Hipervinculo Química
Learn about hard water and the possible consequences of its use.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
Enter the most common elements in the ocean, into the box. Abbreviations don't count
It is an educational content by JetPunk, site that contains a wide variety of quizzes.
Hipervinculo Química
Enter the Elements by 2 most abundance isotopes, into the box.
It is an educational content by JetPunk, site that contains a wide variety of quizzes.
Hipervinculo Química
Unscramble each of the following clues to reveal one of the elements from the Periodic Table.
It is an educational content by JetPunk, site that contains a wide variety of quizzes.
Hipervinculo Química
Can you name these elements by the symbol?
It is an educational content by JetPunk, site that contains a wide variety of quizzes.
Hipervinculo Química
Just think that the periodic table is like the map of the world.
It is an educational content by JetPunk, site that contains a wide variety of quizzes.
Hipervinculo Química
Enter all the Elements you know that start with the letter M!
It is an educational content by JetPunk, site that contains a wide variety of quizzes.
Hipervinculo Química
Guess the names of the elements named after places. Only real places, mythological places don't count.
It is an educational content by JetPunk, site that contains a wide variety of quizzes.
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