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May 28, 2024 · This "shortcut" is known as the "Criss-Cross Method" because the numerical values effectively "criss-cross" over one another when they are moved to their new positions. The resultant base formula is identical to what was derived using the first method: K 3 N 1 .
The general solution of $|a|x=|b|y\ \ s.t.\ \ x,y \in \mathbb{N}$ is $x=n|a|$ and $y=|n|b|$ where $n \in \mathbb{N}$, that is we can use $x=2|a|,3|a|...n|a|$ and similarily $y=2|b|,3|b|...n|b|$ then why use $x=|a|$ and $y=|b|$ only?
May 20, 2018 · An alternative way to writing a correct formula for an ionic compound is to use the crisscross method. In this method, the numerical value of each of the ion charges is crossed over to become the subscript of the other ion. Signs of the charges are dropped.
Writing formula for ionic compounds. When ions of opposite charge get together, they form ionic bonding. Writing the formula for the ionic compound is pretty straightforward. The critical information you’ll need is the charge that each of the ions will form.
Aug 4, 2015 · The criss-cross method makes it easier to determine the subscripts for each element in an ionic compound. Using this method, the number associated with the charge of the first ion is assigned as the subscript of the second ion.
Mar 11, 2022 · You may use the criss-cross rule, but you must make sure that you reduce to the simplest whole number ratio. Determining Ion Charges from Formula If given a formula like NaCl or FeO or Fe 2 O 3 you need to be able to calculate the charge of the ions.
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Oct 2, 2018 · This Vodcast is designed to massively review how to use the Criss Cross Rule to create Ionic Bond Formulas...
- 19 min
- 286
- MahanChem
