Answer:
An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.
The percent composition<span> gives you only the empirical formula.
</span><span>To get the molecular formula, you must either know the molecular mass or do an experiment to find it.</span>
They turn litmus paper blue
Your answer would be, Gas atoms subjected to the electricity emit bright lines of light.
Hop that helps!!!
