The half-life of carbon-14 is about 5730 years
hydrogen is the lightest element in the periodic table
This is going to lead you to the element Argon. Is this what you are asking?
Water is made of only one molecule which can be chemically separated into hydrogen and oxygen. The answer is D.
Answer:
A chemical change has occurred, with energy being given off.
Explanation:
The liquids mix and the stick gives off energy in light form
