Aparking lot space is in the shape on a rectangle. if the psace has a length of 23 feets and a width of 12 feets, what is the area of the parking space?
a) 128 ft2
b) 266 ft2
c) 276 ft2
d) 138 ft2

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Carbon-14 undergoes radioactive decay in the reaction above. determine the type of radiation emitted in this reaction and describe what is happening to the nucleus during this reaction.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car