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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
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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
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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
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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
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Classify the property as physical or chemical:
The boiling point of ethyl alcohol
Physical property
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Classify the property as physical or chemical:
the temperature at which dry ice evaporates
physical property
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Classify the property as physical or chemical:
the tendency of iron to rust
Chemical property
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Classify the property as physical or chemical:
the color of gold
Physical property
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Perform each temperature conversion
212*F to ____*C
212*F to
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Perform each temperature conversion
22*C to___*K
K= [°C] + 273.15
22*C to 295.15*K
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Perform each temperature conversion
0.00*K to ____*F
[°F] = [K] × 9/5 − 459.67
0.00*K to -459.67*F
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Perform each temperature conversion
2.735*K to ___*C
[°C] = [K] − 273.15
2.735*K to *C
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Use scientific notation to express the quantity with only the base units
13.2 ns
1.32 x 101 ns
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Use scientific notation to express the quantity with only the base units
38
3.8 x 101
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Use scientific notation to express the quantity with only the base units
153 pm
1.53 x 102
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Use scientific notation to express the quantity with only the base units
122 um
1.22 x102
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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/cm 3
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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?
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Acetone (nail polish remover) has a density of .7857 g/cm3
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