Observation/ question
research
hypothesis
<span>experiment
</span>analysis
conclusion
That when water is boiled in a open beaker and it disappears that it evaporates into the air
Answer:
<u>Balanced equation:</u>

Explanation:
The chemical reaction between Lead(II) Nitrate and potassium carbonate is as follows.


<u>Ionic equation:</u>

Cancel the same ions on the both sides of the reaction.
The net ionic equation is as follows.

A heater letting of heat is an example of release of energy. Please comment if you have any questions about my answer.<span />