Question

Write the formula using criss cross method for sodium hydroxide

Answer 1

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Answer 2

The formula using criss-cross method for sodium hydroxide is $NaOH$

Explanation:

• Na is the symbol of Sodium.
• OH is the symbol of hydroxide
• By the crisis-coss method,
• here  $Na$ is multiplied with the valency of $OH$ which is$-1$,
• and the $OH$ is multiplied by the valency of $Na$ which is $+1$
• so the compound formed is $NaOH$
• The criss-cross method is used to write the Chemical formulas
• In the criss-cross method-
• The value of the charge of the ion on the two atoms is crossed over and this which becomes the subscript of the other ion.
• Using this criss-cross technique, we can write the chemical formula of the given compounds.