Which statement correctly describes why a compound is a pure substance?
o a compound is not a pure substance because each of its molecules is m
elements
a compound is a pure substance because its molecule cannot be broken
o a compound is not a pure substance because it is not an element, and on
o a compound is a pure substance because it consists of two different elen

What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?