Effects of Changing the Ratio of Elements in a Compound
Changing the ratio of elements in a compound can have significant effects on the properties of the compound. Let's take the example of carbon and oxygen to illustrate this.

Example: Carbon Dioxide (CO2)
In the compound carbon dioxide (CO2), carbon and oxygen combine in a fixed ratio of 1:2. This means that for every 1 atom of carbon, there are 2 atoms of oxygen. This fixed ratio is essential for the chemical properties of carbon dioxide.

Effects of Changing the Ratio
If the ratio of carbon to oxygen in carbon dioxide is changed, the properties of the compound would be altered. For instance, if the ratio is increased to 1:3 (1 atom of carbon to 3 atoms of oxygen), the resulting compound would no longer be carbon dioxide. Instead, it would be a different compound with different properties.
Changing the ratio of elements in a compound can lead to the formation of entirely new compounds with unique characteristics. In the case of carbon and oxygen, altering the ratio could result in the formation of compounds like carbon monoxide (CO) or carbon trioxide (CO3), each with distinct properties and uses.

Conclusion
In conclusion, the fixed ratio of elements in a compound is crucial for determining its properties. Changing this ratio can lead to the formation of new compounds with different characteristics. Understanding the significance of ratios in compounds is essential for predicting and manipulating chemical reactions.

It won't be stable and it will seperate or form stable form by removing any atom