Question

question 8
which of the following best describes saltwater (nacl in h2o)?
a saltwater is an element on the periodic table.
b saltwater is a mixture whose particles can be physically separated.
c saltwater is a pure substance.
d saltwater is a compound whose particles cannot be physically separated.

Explanation:

Saltwater is made up of salt (NaCl) dissolved in water (H2O). It is a mixture because the components are physically combined and can be separated by methods like evaporation. Elements are pure substances made of only one - type of atom and are on the periodic table, and saltwater is not an element. Pure substances are either elements or compounds with a fixed composition, and saltwater is not pure as its ratio of salt to water can vary. Compounds have a definite chemical composition and their components are chemically bonded and cannot be separated physically easily, but saltwater's components can be separated physically.

Answer:

B. Saltwater is a mixture whose particles can be physically separated.