If you express your answer as a chemical equation with all forms given, you would get:
Mg+(g) + e- -> Mg (g)
Helium (He) is the element that has a negative electron affinity. This means that it is less likely to gain an electron compared to other elements listed (Kr, O, Ca, and Mg) which have positive electron affinities.
The chemical equation SiCl + Mg → MgCl2 + Si is not balanced. To balance it, you would need to adjust the coefficients to ensure that the number of atoms of each element is the same on both sides of the equation.
No, the correct equation for the reaction between magnesium (Mg) and hydrochloric acid (HCl) is: Mg + 2HCl → MgCl2 + H2. This reaction produces magnesium chloride (MgCl2) and hydrogen gas (H2).
The balanced chemical equation for the reaction between magnesium (Mg) and chlorine (Cl) to form magnesium chloride (MgCl2) is: 2Mg + Cl2 → 2MgCl
MgCl2 plus 2H20 produces Mg(OH)2 plus 2HCl
The electron affinity of magnesium (Mg) is lower than that of potassium (K) because Mg is a smaller atom with a fully-filled valence shell, making it less likely to accept an additional electron. In contrast, potassium is a larger atom with an electron configuration that benefits from gaining an electron to achieve a stable inert gas configuration.
Helium (He) is the element that has a negative electron affinity. This means that it is less likely to gain an electron compared to other elements listed (Kr, O, Ca, and Mg) which have positive electron affinities.
Among the elements listed: Highest electron affinity: Cl (Chlorine) with an electron affinity of -349 kJ/mol. Lowest electron affinity: Ar (Argon) with an electron affinity of 0 kJ/mol (inerts gases like Ar typically have low electron affinities).
MgO2
The balanced equation for Mg + O2 is 2Mg + O2 → 2MgO.
mg + CuCl2 + MgCl2 + Cu Mg + Cu^+2 = Mg^+2 + Cu
The equation for magnesium plus fluorine is: Mg + F2 → MgF2. This reaction results in the formation of magnesium fluoride.
The electron gain enthalpies of Mg and P are almost zero because both elements are inherently stable in their neutral state (Mg+ and P-). They have a full valence shell configuration, which makes them reluctant to gain additional electrons and become more stable. This results in low electron affinity values for both elements.
The chemical equation SiCl + Mg → MgCl2 + Si is not balanced. To balance it, you would need to adjust the coefficients to ensure that the number of atoms of each element is the same on both sides of the equation.
The molecular equation for the reaction between magnesium (Mg) and hydrochloric acid (HCl) is: Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g)
The balanced equation for MgO + H2O is MgO + H2O -> Mg(OH)2.
NO3-