Term
| The "fog" generated by dry ice (solid CO2) is an example of... |
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Definition
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Term
| The general group of elements that divide metals and nonmetals are... |
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Definition
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Term
| A measurement is said to have good precision if... |
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Definition
| if it agrees closely with other similar measurements |
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Term
From smallest to largest name the metric prefixes you need to know...
______ is to the negative ninth power
______ is to the negative sixth power
______ is to the negative third power
______ is to the negative second power
______ is to the negative first power
______ is to the zero power
______ is to the first power
______ is to the second power
______ is to the third power
______ is to the sixth power
______ is to the ninth power |
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Definition
nano,
micro,
milli,
centi,
deci,
none/meter,
deca,
hecto,
kilo,
mega,
giga |
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Term
Name the number of significant figures in the following numbers:
1) 2500 cm
2) 0.00305
3) 40.319 |
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Definition
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Term
Name how you find Density, Mass, and Volume:
D= blah
M= blahhh
V= blah blah |
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Definition
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Term
How do determine percent error?
Use these values to help explain your answer:
Accepted value = 2.54
The result = 2.46 |
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Definition
To determine percent error, you...
1. Subtract the accepted value from the result (2.46-2.54)
2. Then, divide that number by the accepted value (-.08/2.54)
3. Multiply that by 100 (-.03149 x 100 = -3.149) |
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Term
Out of the following options, determine which one is a heterogeneous mixture:
1. Salt
2. Nitrogen
3. Iron Ore
4. Muddy Water |
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Definition
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Term
Out of the following options, determine which one is a homogeneous mixture:
1. Oil and vinegar salad dressing
2. Air
3. Oxygen gas
4. Salt and Pepper |
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Definition
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Term
| The whole number that is closest to the atomic mass of an atom is the: |
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Definition
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Term
| The atomic weight of oxygen is... (pay attention to the UNIT) |
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Definition
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Term
| An isotope of potassium contains 4 protons, 5 neutrons, and 4 protons. What is it's atomic number? |
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Definition
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Term
| The mass of one mole of atoms of an elements is it's.... |
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Definition
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Term
Determine which one of the following compounds is molecular (numbers represent subscripts):
1)NaCl
2)HNO3
3)N2H4
4)Fe2O3 |
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Definition
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Term
In which of the following types of chemical reactions does a precipitate form?
1) Single Replacement
2) Double Replacement
3) Combustion
4) Synthesis |
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Definition
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Term
| Because the reaction Fe + CuSO4 --> FeSO4 + cu occurs, you know that... |
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Definition
| Fe is higher on the activity series than Cu is |
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Term
Name all of the diatomic elements:
(Think of devices to remember them, there are two:) |
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Definition
(large numbers represent the subscripts)
H2,
O2,
N2,
Cl2,
Br2,
I2,
Fe, |
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