LadyHolmes67
02.05.2021 •
Chemistry
A model of tin, an element with the atomic number 50, is shown here. The valence electrons are modeled here in this image. Which statements are supported by the information in the model? Select ALL That apply.
A) Tin needs four more electrons to complete its outer shell.
B) Tin has no neutrons in the nucleus, as is shown in the model.
C) Tin is highly reactive because it only has four valence electrons.
D) Tin is negatively charged because it more electrons than protons.
E) Tin has a low reactivity because it has full inner shells of electrons.
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Ответ:
MgCl2 + KOH will yield a precipitate.
Explanation:
The pairs of aqueous solutions of which are listed above and the pair MgCl2 + KOH will yield a precipitate.Based on the solubility chart we can reason that Mg(OH)is examined as "insoluble", so it will form a precipitatewhere else the other reactions which are listed above are not stable and it quickly decomposes into water and carbon dioxideMgCl2 is used in the medical field for skin-related issues