The answer is B. molality
Answer: Explanation:
Calcium (Ca), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table. It is the most abundant metallic element in the human body and the fifth most abundant element in Earth's crust.
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Calcium.
atomic number 20
oxidation state +2
electron configuration 1s22s22p63s23p64s2
Explanation:
Answer:
See explanation.
Explanation:
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In this case, since the main molecular reaction that is taken place in the beaker is:

In such a way, we understand that one breaker contained silver nitrate and the other one barium iodide. Thus, the complete molecular equations turns out:

Now, for the complete ionic equation, we just ionize the aqueous species:

Finally, for the net ionic equation we cancel out barium and nitrate ions as the spectator one because they are both sides on the equation:

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The atom consists of a nucleus with electrons orbiting at specific energy levels