How would Mg change to gain a noble gas structure? lose 2 electrons gain 6 electrons
2 answers:
Answer: Magnesium atom looses 2 electrons to obtain the noble gas structure.
Explanation:
Atomic number of magnesium is 12. Electronic configuration of magnesium :
In the periodic table, the nearest noble gas to magnesium element is Neon with atomic number 10.
So, in order to obtain noble gas electronic configuration the magnesium atom will loose 2 electrons.
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Answer:
ΔHreaction = 263.15 kJ/mol
Explanation:
The reaction is as follow:
OH + CF₂Cl₂ → HOF + CFCl₂
You need to calculate the enthalpy of reaction and for this it is necessary to know the standard enthalpies for each of the compounds. These enthalpies are as follows and can be found in your textbook or on the Internet.
ΔHreaction = ∑ΔHproducts - ∑ΔHreactants
Answer:
9.64g/mL
Explanation:
Given parameters:
Mass of the metal = 106g
Volume of cylinder = 50mL
Volume difference = 31mL - 20mL = 11mL
Unknown:
Density of the metal = ?
Solution:
To find the density of the metal, we use;
Density =
Density = = 9.64g/mL