Term
| What is one way you can convert the metric system? |
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Definition
KHD|DCM
From Left To Right you multiply
From Right to Left you divide |
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Term
| How do you calculate sig figs with decimal present? Without? |
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Definition
If decimal present than you count from left to right starting with the first number that is not a zero.
4.5600 would be 5 sig figs
If decimal is not present you count from right to left starting with the first number that is not zero.
3500 would be 2 sig figs |
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Term
Homogeneous definition?
homogeneous mixture example? |
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Definition
A substance that looks the same throughout
alcohol/water, blood, tea, wine |
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Term
Heterogeneous definition?
heterogeneous examples? |
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Definition
A substance that is not consistent throughout
oil/water, sandy water, |
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Term
Examples of mixtures
compounds
elements |
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Definition
sugar/water, air
carbon dioxide, water
helium, carbon, potassium |
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Term
examples of physical properties
examples of physical changes |
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Definition
density, mass, color, texture, volume, boiling point
cutting, crushing, evaporating, melting, |
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Term
| Examples of chemical changes |
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Definition
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Term
| What is the formula for density |
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Definition
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Term
subatomic particles in nucleus?
What makes up most of the mass?
The number of p+= the # of |
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Definition
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Term
What do the superscript and letters represent?
27
Al |
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Definition
The superscript is the mass
The letters are the element |
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Term
if Temp goes up Volume...
if Pressure goes up Volume...
If temp goes up pressure.... |
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Definition
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Term
| When you are given either volume, pressure, and temperature what formula can you use? |
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Definition
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Term
When you are given either pressure, volume, mols, or temperature you can use what formula?
How much does r equal |
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Definition
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Term
Heating curve
Name the points in order
Name the heats in order and Write what each heat equals |
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Definition
Melting point, freezing point, boiling point, condensing point
Heat of fusion=334 j/g,Specific heat=4.184 j/g, Heat of vaporization=2260 j/g, |
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Term
| When solving for energy what formula do you use? |
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Definition
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Term
| When solving molality and molarity what formula do you use? |
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Definition
| m= mols/vol(Kiligrams) M=mols/vol (liters) |
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Term
When looking for frequency or wavelength what formula do you use?
How much is c |
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Definition
c=wavelength (m)/ frequency s-
3.0X10^8 m/s |
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Term
When looking for energy with wavelengths and frequency what formula do you use?
How much is h? |
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Definition
E=hc/wavelength
6.6262X10^-34 J*s |
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Term
Stp would be
How much is 0 degrees Celsius in kelvin |
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Definition
1 atm, (x)=(1 mol)(0.0821)(273K)
273 |
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Term
| When you have volume, element, pressure and temp but you want to solve mass what formula do you use? |
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Definition
MW(atomic mass)=mrt
____
vp |
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Term
When you are a given mass, element and stp but you want to find volume, what formula do you use?
What is volume in stp? |
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Definition
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