Answer:
I would say the last one because mass is not created nor destroyed.
Explanation:
Colorimetric methods of analysis make use of Color changes in reagents to decipher the concentration of solutions.
Therefore, color completes the sentence
<h3>Colourimetric analysis</h3>
Generally, Colorimetric analysis is used to know the concentration of a chemical element in a solution while using colour indicators or reagents.
Therefore
Colorimetric methods of analysis are based on having a reagent that changes Color as a function of the concentration of the analyte.
Color
For more information on Compound
brainly.com/question/704297
Covalent Bond.
To be specific, it is polar covalent bond. :)
False. elements in the same period have the same number of shells while elements in the same group have the same number of valence electrons.