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58 Cards in this Set
- Front
- Back
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Chemistry (vocab) |
The study of matter and the changes it undergoes. |
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The Scientific Method (vocab) |
A systematic approach to research. |
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Qualitative Data (vocab) |
General Observations about the System |
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Quantitative Data (vocab) |
Comprising numbers obtained by various measurements of the system. |
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Hypothesis (vocab) |
A tentative explanation for a set of observations. |
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The 3 Levels of studying Chemistry and their Relationships |
1. Observation 2. Representation 3. Interpretation |
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Theory (vocab) |
A unifying principal that explains a body of facts and/or those laws that are based on them. |
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Matter (vocab) |
Anything that occupies space and has mass. |
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Substance (vocab) |
A form of matter that has a definite (constant) composition and distinct properties. |
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Mixture (vocab) |
A combination of 2 or more substances in which the substances retain their distinct identities. |
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Homogeneous Mixture (vocab) |
The composition of the Mixture is the same throughout. |
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Heterogeneous Mixture (vocab) |
The composition of the mixture is not uniform. |
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Element (vocab) |
A substance that cannot be separated further into simpler substanced by chemical methods. |
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Compound (vocab) |
A substance composed of atoms of 2 or more elements chemically united in fixed proportions. |
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The difference between Compounds and Mixtures... |
Compounds can be separated only by chemical means into their pure components. |
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The 3 States of Matter |
1. Solid 2. Liquid 3. Gas |
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Melting Point (vocab) |
The temperature at which a solid to liquid transition occurs. |
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Boiling Point (vocab) |
The temperature at which the liquid to gas transition occurs. |
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Freezing Point (vocab) |
The temperature at which the liquid to solid transition occurs. |
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Physical Property (vocab) |
Can be measured and observed without changing the composition or identity of a substance. |
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Chemical Property (vocab) |
Can only be observed through carrying out a chemical change. |
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Extensive Property (vocab) |
A measured value that depends on how much matter is being considered. |
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Mass (vocab) |
The quantity of matter in a given sample of a substance. |
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Volume (vocab) |
Defined as Length Cubed |
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Intensive Property (vocab) |
A measured value that does not depends on how much matter is being considered. |
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Density (vocab) |
The mass of an object divided by its volume. |
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Unit Prefixes: peta- (Symbol & Meaning) |
P, 10^15 (unit prefixes) |
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Unit Prefixes: tetra- (Symbol & Meaning) |
T, 10^12 (unit prefixes) |
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Unit Prefixes: giga- (Symbol & Meaning) |
G, 10^9 (unit prefixes) |
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Unit Prefixes: mega- (Symbol & Meaning) |
M, 10^6 (unit prefixes) |
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Unit Prefixes: kilo- (Symbol & Meaning) |
k, 10^3 (unit prefixes) |
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Unit Prefixes: deci- (Symbol & Meaning) |
d, 10^-1 (unit prefixes) |
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Unit Prefixes: centi- (Symbol & Meaning) |
c, 10^-2 (unit prefixes) |
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Unit Prefixes: milli- (Symbol & Meaning) |
m, 10^-3 (unit prefixes) |
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Unit Prefixes: micro- (Symbol & Meaning) |
u, 10^-6 (unit prefixes) |
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Unit Prefixes: nano- (Symbol & Meaning) |
n, 10^-9 (unit prefixes) |
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Unit Prefixes: pico- (Symbol & Meaning) |
p, 10^-12 (unit prefixes) |
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Unit Prefixes: femto- (Symbol & Meaning) |
f, 10^-15 (unit prefixes) |
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Unit Prefixes: atto- (Symbol & Meaning) |
a, 10^-18 (unit prefixes) |
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Weight (vocab) |
The force that gravity exerts on an object. |
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Weighing (vocab) |
The process of measuring Mass. |
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Density (formula) |
? = Mass / Volume |
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Mass (formula) |
? = Density × Volume |
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Volume (formula) |
? = Mass / Density |
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Fahrenheit (Freezing & Boiling Points) |
Freezing = 32°F, Boiling = 212°F |
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Celsius (Freezing & Boiling Points) |
Freezing = 0°C, Boiling = 100°C |
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Kelvin (Lowest & Highest Temperatures Attainable) |
Lowest = 0K, Highest = 373K |
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°F --> °C (formula) |
(°F - 32°F) × (5°C / 9°F) |
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°C --> °F (formula) |
(9°F / 5°C) × (°C) + 32°F |
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°C --> K (formula) |
(°C + 273.15°C) × (1K / 1°C) |
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Scientific Notation (formula) |
N × 10^n |
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Significant Figures (vocab) |
The meaningful digits in a measured or calculated quantity, used to indicate the margin of error in a measurement. |
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Accuracy (vocab) |
How close a measurement is to the true value of the quantity that was measured. |
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Precision (vocab) |
Refers to how closely 2 or more measurements of the same quantity agree with one another. |
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Conversion Factor (vocab) |
A ratio used to express a quantity in different units of measurement. |
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1km = ?m |
1000m = ?km |
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1m = ?cm |
100cm = ?m |
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1cm = ?mm |
10mm = ?cm |
