Math

QuestionHow do you write the formula for a compound with potassium and dichromate ions?

Studdy Solution

STEP 1

Assumptions1. The compound contains potassium ions (K+). . The compound contains dichromate ions (Cr7^-).
3. The compound is neutral, meaning the total positive charge equals the total negative charge.

STEP 2

First, we need to balance the charges. The potassium ion has a charge of +1 and the dichromate ion has a charge of -2.

STEP 3

To balance the charges, we need two potassium ions for each dichromate ion. This is because two potassium ions (+1 each) will neutralize one dichromate ion (-2).

STEP 4

Now, we can write the formula for the compound. The formula for a compound is written by listing the symbols of the elements, with subscript numbers indicating the number of each type of ion.
K2Cr27K2Cr27This formula indicates that the compound contains two potassium ions and one dichromate ion.

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