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問題一覧
1
To separate a volatile solid from a non-volatile solid
Sublimation
2
To separate a liquid from a solution to leave solid materials
Evaporation
3
To separate a liquid in a homogeneous mixture
Distillation
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To separate a magnetic solidfrom a heterogeneous mixture
Magnetic separation
5
To separate a solid to a liquid in a heterogeneous mixture which filters membrane, like paper and clothes
Filtration
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What are the states of matter
Solid, Liquid , Gas, Plasma
7
Refers to the compound or substance
Chemical
8
Observed and measured as sample changes chemical identity
Chemical properties
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Describes relationship between the mass of material and it's volume
Density
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Is a symbolic expression of a compound or substance, described as shorthand of expressing the types and the number of atoms in a substance
Chemical Formula
11
Represents a temperature at which solid can change to liquid
Melting point
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A substances which do not vaporize rapidly
Non-volatile Solid
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Are the abbreviation used in chemistry for chemical elements, functional groups, and chemical compounds
Chemical symbols
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Temperature at which liquid boil
Boiling point
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physical property of matter that depends on the amount of the substance
Extensive properties
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Weight. Length. Volume. Entropy.
Extensive properties
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Study of chemicals
Chemistry
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How to decode a molecular compound: Step 2
Write the symbols the molecule has in the symbol column
19
How to decode a molecular compound: Step 5
Determine the common name of the given
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Acidity. Reactivity. Flammability. Toxicity.
Chemical properties
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A substance that can easily transform from its solid phase to its vapor phase without going through a liquid phase.
Volatile solid
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(4Fe+30-v2 —→ 2-F-v2-O-v3)
Rusting
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How to decode a molecular compound: Step 4
How many atoms? If their is a small number right beside the symbol, this indicates how many atoms you're elements have
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To separate a solid from a liquid in a heterogeneous mixture based on gravity
Decantation
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physical property of matter that is independent of the amount of a substance
Intensive Properties
26
How to decode a molecular compound. STEP 1:
Underline the capital letters. this tells you how many elements are in your molecule
27
Number placed half a line above their associated symbol, it tells the mass number of the element.
Superscripts
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Observed and measured without changing chemical identity of sample
Physical properties
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Chemical properties are...
Properties that tells us how the substance interacts with other substances and may include reactions with oxygen, chlorine, metals, etc.
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Temperature. Boiling Point. Concentration. Luster.
Intensive properties
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Refers to the symbolic expression
Formula
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Number placed half a line below their associated atomic symbols, it tells you how many atoms of each each element represents
Subscripts
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Physical properties are...
Substance that can be determined and measured without changing the composition or identity of the substance
34
Color. Length. Volume. Opacity.
Physical properties
35
How to decode a molecular compound: Step 3
Element name - Uses periodic table to identify what elements the symbol have
36
What is matter?
Anything that occupies space and has mass
37
Ability to burn defined as reacting quickly with oxygen to produce light and heat
Combustibility