# EXAM 1

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1. Classify the substance as a pure substance or mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous.

Wine
Wine is a Mixture that is homogeneous
2. Classify the substance as a pure substance or mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous.

beef stew
Beef stew is a mixture that is heterogeneous
3. Classify the substance as a pure substance or mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous.

Iron
Iron is a Pure that is an element
4. Classify the substance as a pure substance or mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous.

Carbon monoxide
Carbon monoxide is a pure substance that is a compound
5. Classify the property as physical or chemical:

The boiling point of ethyl alcohol
Physical property
6. Classify the property as physical or chemical:

the temperature at which dry ice evaporates
physical property
7. Classify the property as physical or chemical:

the tendency of iron to rust
Chemical property
8. Classify the property as physical or chemical:

the color of gold
Physical property
9. Perform each temperature conversion

212*F to ____*C
212*F to
10. Perform each temperature conversion

22*C to___*K
K= [°C] + 273.15

22*C to 295.15*K
11. Perform each temperature conversion

0.00*K to ____*F
[°F] = [K] × 9/5 − 459.67

0.00*K to -459.67*F
12. Perform each temperature conversion

2.735*K to ___*C
[°C] = [K] − 273.15

2.735*K to *C
13. Use scientific notation to express the quantity with only the base units

13.2 ns
1.32 x 101 ns
14. Use scientific notation to express the quantity with only the base units

38
3.8 x 101
15. Use scientific notation to express the quantity with only the base units

153 pm
1.53 x 102
16. Use scientific notation to express the quantity with only the base units

122 um
1.22 x102
17. A supposedly gold nugget is tested to determine its density. It is found to displace 19.3 mL of water ( which means it has a volume of 19.3 mL) and has a mass of 371 grams. Could the nugget be made of gold?

gold =19.3 g/cm3
d=M/v

371/19.3=19.2222 g/cm3

• No
18. Acetone (nail polish remover) has a density of .7857 g/cm3

a.
What is the mass, in g. of 28.56 mL of acetone?
b. What is the volume, in mL, of 6.54g of acetone?
• d=m/v
• .7857= m/28.56

a. m=22.54

.7857=6.54g/V
19. Acetone (nail polish remover) has a density of .7857 g/cm3

### Card Set Information

 Author: Cheetah13 ID: 303791 Filename: EXAM 1 Updated: 2015-06-09 10:31:23 Tags: Brandi Chemistry Folders: CHEM 1.1 Description: Chemistry chapter one for miller Show Answers:

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