Name ____________________________________________
Atoms, Elements, Compounds and Mixtures Exam Review
Part 1: Fill in the blanks for questions 1-24.
1. Matter consists of ____________________________________.
2. An _______________________________ is made up of only one type of atom.
3. A __________________________________ is made up of 2 or more different elements.
4. A compound consists of 2 or more DIFFERENT ELEMENTS _____________________________ combined.
5. The smallest part of a compound is an ___________________________________.
6. Protons have a ____________________ charge while electrons have a _________________________ charge.
7. Neutrons are ___________________________ because they have no charge.
8. The ___________________________________of an atom contains protons and neutrons.
9. ________________________________ are found outside the nucleus.
10. The atomic number represents the number of _____________________________ in an atom.
11. H2O is an example of a _________________________________ because it is made up of 2 different elements.
12. Carbon (C) is an example of an _______________________________ because it is made up of only one type of atom.
13. An _____________________________________ CANNOT be broken down.
14. A mixture consists of 2 or more different substances _________________________________ combined.
15. The substance that dissolves in a liquid is called the _______________________________________.
16. The substance that does the dissolving is called the ________________________________________.
17. A solution consists of a ______________________________ and a ________________________________.
18. Anything metallic can be separated from a mixture by using a ______________________________.
19. Rocks can be separated by sand using a _____________________________________.
20. ___________________________________ is used to separate pigments from a mixture.
21. Salt can be separated from a salt water solution by using _________________________________.
22. Sand can be separated from liquid mixture by using ___________________________ paper.
23. An _____________________________ substance CANNOT dissolve in a solvent while a
_______________________________ CAN dissolve in a solvent.
24. Three factors that can increase the solubility of a substance is ______________________________________,
________________________________________ and ___________________________________.
Part 2: Write you answers in the spaces provided.
25. Sand, sugar and water are mixed together in a beaker.
a. Identify the solvent. _______________________________________________________
b. Identify the solute. Support your answer.
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c. Identify the soluble substance. ___________________________________________________________
d. Identify the insoluble substance. _________________________________________________________
e. What can be used to separate the sand from the sugar water solution?
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f.
How can the sugar be separated from the solution?
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26. Contrast an element and a compound.
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27. Is carbon dioxide (CO2) a compound or an element? Support your answer.
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28. Can carbon dioxide be broken down? Support your answer.
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29. Compare and contrast a compound and a mixture.
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