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| ampere electrical current |
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| candela luminosity intensity |
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| Terameter 1x10^12 or 1000000000000meters |
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| Gigameter 1x10^9 or 1000000000meters |
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| mega 1x10^6 or 1000000meters |
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| kilometer 1x10^3 or 1000meters |
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| decimeter 1x10^-1 or 0.1meter |
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| centimeter 1x10^-2 or 0.01 meter |
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| milimeter 1x10^-3 or 0.001 meter |
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| micrometer 1x10^-6 or 0.000001meter |
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nanometer 1x10^-9 or0.000,000,001meter
billionth of a meter |
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| picomiter 1x10^-12 or 0.000000000001 meter |
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| depends on how much of something, length, weight |
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| does not depend on how much of something temperature density |
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if mass=301 g
volume =15.6 cm^3
what is density? |
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| d=(301g)/(15.6cm)=19.3 g/cm^3 |
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density=1.41g
volume=242mL
mass? |
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Farenheit to celcius
40 F=? |
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yC=(xF-32)(5C/9F)
yC=(40F-32)(5C/9F)
yC=8F(5C/9F)
yC=40/9C |
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Celcius to Farenheit
20 C=? |
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yF=(9F/5C)(xC)+32F
yF=(9F/5C)(20C)+32F
yF=180F/5+32F
yF=36F+32F
yF=68F |
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1.12what does each of the following describe a chemical change or a physical change
at the helium gas inside a balloon tends to leak ou after a few hours
b a flash light beam slowly gets dimmer and finally goes out after a few hours
c frozen orange juice is reconstituted my adding wear to it
d the forth of plants depends on the suns energy in a process called photosynthesis
e a spoonful of table sale dissolves in a bowl of soup |
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a physical change
b chemical change
c physical change
d chemical change
e physical change |
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1.14
give the chemical symbol for the following elements
a cesium
b germanium
c gallium
d strontium
e uranium
f selenium
g neon
h cadmium |
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a Cs
b Ge
c Ga
d Sr
e U
f Se
g Ne
h Cd |
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1.16 classify each of the following as an element a compound a homogenous mixture or a heterogeneous mixture
a water from a well
b argon gas
c sucrose
d a bottle of red wine
e chicken noodle soup
g blood flowing in a capillary
g ozone |
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a homo
b element
c compound
d homo
e hetero
f hetero
g element |
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| 1.22 the density of a methanol a colorless organic liquid used as a solvent is 0.7918 g/ml calculate the mass of 89.9 mL of the liquid |
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| a formally the human body can endure a temperature of 105 for only short periods of time without permanent damage to the brain and other vital organs what is the temperature in degrees Celsius |
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| ethylene glycol is a liquid organic compound that is used as an antifreeze in radiator it freezes at -11.5 C calculate its freezing temperature in degrees F |
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| the temperature on the surface of the sun is about 6300 C what is the ten in F |
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| the ignition of a paper is 451 F what is the C |
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Convert the following into C
a 77k
b 4.2 K
c 601 K |
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express the following numbers as decimals 1.52x10^-2,
b7.78x10^-8 |
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