Term
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Definition
depends on the amount of matter present
(ex: volume, mass) |
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Term
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Definition
| depends on the identity of the substance (ex: boiling point, density, conductivity) |
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Term
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Definition
| can be observed without changing the identity of the substance (ex: melting point, density, magnetic) |
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Term
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Definition
| describes the ability of a substance to undergo changes in identity (ex: flammable, tarnishes in air) |
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Term
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Definition
| changes the form but not the properties or identity of a substance (ex: sugar cube dissolving in water, ice melting, grinding spices) |
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Term
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Definition
| changes the identity and properties of a substance (ex: rusting iron, burning a log) |
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Term
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Definition
Composed of identical atoms
Matter that cannot be seperated (pure substance) or be chemically decomposed
(ex: copper wire, aluminum foil, graphite) |
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Term
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Definition
composed of 2 or more elements in a fixed ratio
properties differ from those of individual elements
Matter that can't be physically seperated (pure substance) but can be chemically decomposed
(ex: table salt, sugar) |
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Term
| Law of Definite Compostition |
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Definition
| a given compound always contains the same, fixed ratio of elements |
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Term
| Law of Multiple Proportions |
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Definition
| Elements can combine in different ratios to form different compounds |
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Term
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Definition
| matter that can be physically seperated |
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Term
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Definition
Homongeneous Mixture(matter that can be physically seperated and has a uniform composition)
very small particles
no Tyndall effect
particles don't settle
(ex: rubbing alcohol, salt water) |
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Term
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Definition
Heterogeneous mixture (matter that can be physically seperated and has a non-uniform composition)
medium-sized particles
Tyndall effect
particles don't settle
(ex: milk, mayonnaise, fog) |
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Term
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Definition
heterogenous mixture(matter that can be physically seperated and has a non-uniform composition)
Tyndall effect
particles settle
(ex: fresh squeezed lemonade, muddy water, italian salad dressing) |
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Term
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Definition
Miss-Mega (M)
Kathy- Kilo (k)
Hall- Hepta (h)
Drank- Deka (da)
Gatorade- Gram (g)
Milk- Meter (m)
(and)
Lemonade- Liter (L)
During- Deci (d)
Class- Centi (c)
Monday- Milli (m)
Morning- Micro (u)
(and)
Never-Nano (n)
Peed- Pico (p) |
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Term
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Definition
1. Ask a question
2. Observe and collect date
3. Make a hypothesis
4. Test your hypothesis (experiment)
5. Draw conclusions |
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Term
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Definition
| a general statement based on the observed behavior of matter to which no exception is known |
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Term
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Definition
| a broad generalization that explains a body of facts or phenomena (can be changed later/ part of a law if proved correct enough) |
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Term
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Definition
| Numerical data such as mass or density |
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Term
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Definition
| descriptive non-numerical data such as color or shape |
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Term
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Definition
| the closeness of a set of measures of the same quantities made in the same way (repitition) |
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Term
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Definition
| determined by the agreement between the measured quantity and the correct value (as close to the target as possible) |
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Term
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Definition
| accepted value- experimental value/ accepted value * 100 |
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Term
| Rules for counting significant figures |
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Definition
1. Leading zeros do NOT count
2. Captive zeros ALWAYS count
3. Trailing zeros ONLY count IF there is a decimal at the end
50 (1)
50.(2)
50.00 (4)
.00005 (1)
0.05 (1)
0.50 (2) |
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Term
| Rules for Adding, Subtracting, Multiplying, and Dividing Significant Figures |
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Definition
| 1. the answer should have the same number of decimal places as the measurement with the least number of decimal places (the least accurate measurement) |
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Term
| Celsius to Kelvin Temperature Conversion formula |
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Definition
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Term
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Definition
Mass divided by Volume
solids: grams/cm^3
liquids: grams/mL
gases: grams/L |
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