Which properties describe elements that are nonmetal gases? Select all that apply. A) composed of an extended structure
B) composed of individual atoms or diatomic molecules
C) high melting point
I D) low melting point
E) strong attractions between particles
OF) weak attractions between particles
Please help ASAP

A) composed of an extended structure, F.) weak attractions between particles, and C) high melting point

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a