BRAINLIEST
Bridgette wants to conducts science experiment using copper (Cu), salt (NaCl), and vinegar (C₂H₄O₂). Of these, only copper is an element. Why is this true?
Copper is the only material consisting of a single pure substance
Copper is the only material found in nature
Copper is the only material that is a solid
Copper is the only material composed of more than one pure substance
(copper is the only material consisting of a single pure substance)
Explanation:
an element is made up of only one type of atom, and copper (Cu) as you can see is a single pure atom whereas salt (NaCl) and vinegar (C2H4O2) are both made of different elements.
