Elements and Compounds
Elements, Compounds and Mixtures – Online Worksheet
3 Topics | 15 Quizzes
Chemical Change
Elements, Compounds and Mixtures – Question 4
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Question 4
Label the following statements as true (T) or false (F).
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Statement True (T) or False (F)? Elements are pure substances because they contain only one type of atom. Compounds are not pure substances because they contain more than one type of atom. Compounds can be physically separated. Atoms in a molecule are held together by chemical bonds. Some molecules only contain one type of atom. There are as many different elements as there are different atoms. A given combination of elements can form only one type of compound. Mixtures can contain elements and compounds. Since the compound ammonia contains nitrogen and hydrogen atoms, it has similar properties to the elements nitrogen and hydrogen. Elements and compounds have specific melting and boiling points. Mixtures have specific melting and boiling points.
Correct / 11 PointsIncorrect / 11 Points -