Elements and compounds are pure substances.
Elements are formed by just one kind of atoms (Na, Fe, H₂, O₃), while compounds are formed by 2 or more kinds of atoms (H₂O, NaCl, CO₂).
Which of the following is a way in which elements and compounds are similar?
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Elements and compounds are listed on the periodic table. NO. Only elements are listed on the periodic table.
- Elements and compounds are pure substances. YES. Pure substances are those that have a definite chemical formula.
- Elements and compounds are both made up of different kinds of atoms. NO. Elements are formed by only one kind of atoms while compounds are made up of 2 or more kind of atoms.
- Elements and compounds can both be broken down by physical means. NO. None of them can be broken down by physical methods.
All in all, elements and compounds are pure substances is the correct choice.
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