1.3 Review
Name________________________________
Mixtures, Compounds and Elements
Period________Date____________________
Identify each of the following as heterogeneous, homogeneous (mixture), or pure substance:
_____________________________ 1. alphabet soup
___________________________ 6. paint
_____________________________ 2. table salt
___________________________ 7. sea water
_____________________________ 3. concrete
___________________________ 8. granite
_____________________________ 4. water
___________________________ 9. steel
_____________________________ 5. air
___________________________ 10. sugar
Completion: Complete the following sentences using the correct separating technique term. Some terms
may be used more than once.
filtration
crystallization (evaporation) chromatography
electrolysis
distillation
11. Heterogeneous mixtures are often separated by __________________________.
12. Separating sand from water can be done by ___________________________.
13. The sugar in sugar water can be removed by ___________________________.
14. The separation technique that takes advantage of different boiling points is called ________________.
15. Removing chlorophyll pigment from leaves might be done by ______________________________.
16. The best way to decompose water into hydrogen and oxygen is by ____________________________.
17. Crude oil is broken down by heat, vaporized, and allowed to condense into various liquids such as
gasoline. This process is called __________________________.
Short answer:
18. How could you separate a mixture of iron fillings and aluminum fillings? What property of these
metals would allow such a separation?
Identify each of the following materials as either an element, (E), or a compound (C):
______ 19. carbon
______ 23. plastic
______ 27. silicon dioxide
______ 20. water
______ 24. tin
______ 28. carbon dioxide
______ 21. aluminum foil
______ 25. arsenic
______ 29. helium
______ 22. sodium chloride ______ 26. ethanol
______ 30. methanol
Fill in the blank portions of the chart:
Element Name
Element Symbol
Derivative Name
30.
Na
natrium
31.
Cu
cuprum
Lead
32.
plumbum
33.
W
wolfram
34.
Fe
ferrum
35.
Sn
stannium
36.
Potassium
Au
37.
38.
aurum
Mercury
hydrargyrum
Ag
39.
Completion: elements
properties
kalium
symbols
letters
periodic table
compound
argentum
mixtures
pure
carbon dioxide
40. ______________________ cannot be separated by physical or chemical means.
41. Elements abbreviated with ___________________, which consist of one or two _________________.
42. Elements are organized on the ________________________________.
43. Two or more elements chemically combined make up a _______________________.
44. Carbon is an example of an element, and _______________________ is an example of a compound.
45. Elements and compounds are called __________________ substances because they have a unique
set of chemical and physical _________________________.
46. List elements that were named for famous scientists: #96 ___________________#99______________
#100________________________#101__________________________ #102 ___________________
#103 _______________________#104__________________________ #106 ___________________
#107 _______________________#109__________________________ #111 ___________________
47. Two substances were tested and were found to have the following chemical compositions.
Substance A
Substance B
73% oxygen
27% carbon
57% oxygen
43% carbon
Are these substances the same compound? Explain. _______________________________________
_________________________________________________________________________________