Which of the following statements is false? which of the following statements is false?
a. mixtures may be composed of two or more elements, two or more compounds, or a combination of both.
b. a mixture may be either homogeneous or heterogeneous.
c. matter may be a pure substance or it may be a mixture.
d. a pure substance may either be an element or a compound.
e. all of the above statements are true

option A) Mixtures may be composed of two or more elements, two or more compounds, or a combination of both.

Explanation:

A mixture is a combination of two or more substances mixed together and can be separated by physical methods.

A combination of two elements or compounds will yield chemical compounds NOT a mixture.

Thus, option A is false statement

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.