Chemistry, 27.09.2019 02:00 byrdkellykellybyrd

Complete and balance the molecular equation, including phases, for the reaction of aqueous sodium carbonate, na2co3 and aqueous nickel(ii) chloride, nicl2.

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The reaction of an aqueous solution of sodium carbonate and an aqueous solution of nickel (II) chloride would yield to sodium chloride and nickel carbonate. The chemical reaction would be expressed as:

Na2CO3 + NiCl2 = NaCl + NiCO3

To complete the reaction, we need to balance and specify the phases of the substances. The reactants are in an aqueous solution so we write (aq), NaCl is soluble in water so it is in the aqueous phase, we write (aq) but NiCO3 is insoluble in water so it would precipitate out and we write (s). The complete chemical reaction would be expressed as follows:

Na2CO3(aq) + NiCl2(aq) = 2NaCl(aq) + NiCO3(s)

Answer from: Quest

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

$^{m}_{4}x$ and $^{m}_4y$

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

$^{m}_{5}x^{-}$

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be $^{9}_{5}be^{-}$ and $^{9}_{4}be$ .

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.

Answer from: Quest

For cyclohexane compounds drawn in a chair conformation: -axial bonds are vertical -equatorial bonds are parallel to two bonds within the ring. thus, as i assume the chair conformation is drawn: -the x group is in an axial position, as are the five other vertical bonds. -three axial bonds are on the top face of the ring -the other three axial bonds are on the bottom face the position of the second substituent on each ring carbon is equatorial. gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other. drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1. click this link and watch some academic videos that may you more understand the topic

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Complete and balance the molecular equation, including phases, for the reaction of aqueous sodium ca...

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