Chem chapter 1 and 2

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1
Matter
Anything that has mass and takes up space
2
Filtration
A process that separates materials based on the size of their particles.
3
Distillation
a liquid is boiled to produce a vapor that is then condensed into a liquid
4
Homogenous mixture
A mixture that is the same throughout
5
Hertrogenous mixture
A mixture made of two or were substances
6
Element
The simplist form of matter with a unique set of properties
7
Chemistry
The study of the properties of matter and how matter changes
8
Organic
the study of compounds containing carbon
9
Inorganic chemistry
the study of chemicals that do not contain carbon
10
Biochemistry
the study of substances and processes occurring in living things
11
Analytical chemistry
the area of study that focuses on the composition of matter
12
Physical chemistry
the area of chemistry that deals with the mechanism, the rate, and the energy transfer that occurs when matter undergoes a change
13
Pure chemistry
the pursuit of chemical knowledge for its own sake
14
Applied chemistry
research that is directed toward a practical goal or application
15
Compound
substance formed by the chemical combination of two or more elements in definite proportions
16
Technology
The application of scientific knowledge for practical purposes
17
Physical property
a characteristic that can be observed or measured without changing the identity of the substance
18
Chemical property
the ability of a substance to undergo a specific chemical change
19
Scientific method
A logical, systematic approach to the solution of a scientific problem
20
Observation
Information obtained through the senses.
21
Hypothesis
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
22
Experiment
a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
23
Conclusion
a judgement based on the information obtained
24
Theory
well-tested explanation that unifies a broad range of observations
25
Scientific law
a concise statement that summarizes the results of many observations and experiments
26
Product
A substance produced in a chemical reaction
27
Phase
any part of a sample with uniform composition and properties
28
Physical change
A change in a substance that does not change its identity
29
Liquid
A state of matter that has no definite shape but has a definite volume.
30
Mass
the amount of matter in an object
31
Solid
Definite shape and volume
32
Solution
A homogeneous mixture of two or more substances
33
Reactant
a substance that takes part in and undergoes change during a reaction.
34
Sodium
Na
35
Potassium
K
36
Carbon
C
37
Gold
Au
38
Nitrogen
N
39
Iron
Fe
40
Malleability
the ability of a substance to be hammered or beaten into thin sheets
41
Ductile
A term used to describe a material that can be pulled out into a long wire.
42
Mixture
A combination of two or more substances that are not chemically combined
43
Pollutant
A material found in air, water, or soil that is harmful to humans or other organisms
44
Intensive property
a property that depends on the type of matter in a sample, not the amount of matter
45
Extensive property
a property that depends on the amount of matter in a sample
46
Evaporation
The change of a substance from a liquid to a gas
47
Distillation
a liquid is boiled to produce a vapor that is then condensed into a liquid
48
Condensation
The change of state from a gas to a liquid
49
Law of conservation of matter
Matter is not created nor destroyed in any chemical or physical change
50
Insulation
A substance that reduces the transfer of thermal energy.
51
Vapor
Gaseous state of a substance that is a liquid or a solid at room temperature
52
Chemical symbol
one or two letters that represent an element
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