5. Which of the following methods should be used to determine whether a
substance is a mixture or a compound?
A. titration
B. combustion
C. physical separation
D. chemical decomposition
TTCITES manos en los brazos.
Titration is a process in which we use a titrant, a solution of known concentration, and adding it to our analyte, a solution of unknown concentration. Using an indicator within the analyte solution lets us find the equivalence point, as indicator changes the color when all of the solute in the unknown solution reacted. We can then apply stoichiometry and find the molarity of the analyte. Hence, this is a process of determining molarity.
Combustion is a process in which we burn a substance in excess of oxygen, it produces new products.
Physical separation is a process to separate a mixture of several compounds into its individual components, usually based on different solubility, different boiling point or different density/polarity.
Chemical decomposition is a process in which we heat an insoluble substance to a high temperature and decompose it into separate new substances.
