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An identifying characteristic that can be observed or measured without changing the substance’s composition. [p. 56] ________________ Eg. – density, color, odor, taste, hardness, melting point (mp), boiling point (bp), physical state of different temperatures – to name a few… U3: Atoms, Molecules & Matter Substance(s) PHYSICAL Property
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Chemistry I – Unit 3:Atoms, Molecules, Matter &
Properties
• Matter that has uniform, unchanging composition or make up from one sample to another. [p55]
_________________ for example (eg.) Table Salt
_________________
U3: Atoms, Molecules & Matter
Substance(s)
• An identifying characteristic that can be observed or measured without changing the substance’s composition. [p. 56]
________________Eg. – density, color, odor,
taste, hardness, melting point (mp), boiling point (bp), physical state of matter @ different temperatures – to name a few…
U3: Atoms, Molecules & Matter
Substance(s)
PHYSICAL Property
• Physical properties that are dependent upon the AMOUNT of the substance present or available. [p. 56]
________________Eg. – Mass (depends on the
amount) of an object/substance; length, volume, weight…
U3: Atoms, Molecules & Matter
Substance(s)
PHYSICAL Property
PHYSICAL Property - Extensive
• Physical properties that are Independent [of] the AMOUNT of the substance present or available. [p 56]
________________Eg. – Density (g/cmᶟ)… the
bigger the object the more water it displaces and yet the “ratio” of grams over volume doesn’t change. Color, MP, BP, FP,
U3: Atoms, Molecules & Matter
Substance(s)
PHYSICAL Property
PHYSICAL Property - Intensive
Physical properties that are dependent upon the AMOUNT of the substance present or available.
Physical properties that are independent [of] the amount of the substance present.Matter that has uniform, unchanging composition or make up from one sample to another.
An identifying characteristic that can be observed or measured without changing the substance’s composition.
U3: Atoms, Molecules & Matter
Substance(s)
PHYSICAL Property
PHYSICAL Property - Extensive
PHYSICAL Property - Intensive
Physical properties that are dependent upon the AMOUNT of the substance present or available.
Physical properties that are independent [of] the amount of the substance present.Matter that has uniform, unchanging composition or make up from one sample to another.
An identifying characteristic that can be observed or measured without changing the substance’s composition.
U3: Atoms, Molecules & Matter
Substance(s)
PHYSICAL Property
PHYSICAL Property - Extensive
PHYSICAL Property - Intensive
White crystal
Liquid @ ambient
19.4 g/cmᶟ
10 cm x 10 cm
Weighs 58.5 grams
Match stick broke in-half; both pieces are wood.
Mud puddle
U3: Atoms, Molecules & Matter
Substance(s)
PHYSICAL Property - Extensive
PHYSICAL Property - Intensive
NON-Substance(s)
PHYSICAL Property - Extensive
PHYSICAL Property - Intensive
PHYSICAL Property - Intensive
White crystal
Liquid @ ambient
19.4 g/cmᶟ
10 cm x 10 cm
Weighs 58.5 grams
Match stick broke in-half; both pieces are wood.
Mud puddle
U3: Atoms, Molecules & Matter
Substance(s)
PHYSICAL Property - Intensive
PHYSICAL Property - Intensive
NON-Substance(s)
PHYSICAL Property - Intensive
PHYSICAL Property - Extensive
PHYSICAL Property - Extensive
• The ability of a substance to combine with –or change into – another substance.
• The contra-positive is true too; the Inability of a substance to combine with – or change into – another substance is ALSO considered to be a chemical property
Chemical Properties
U3: Atoms, Molecules & Matter
• The ability of a substance to combine with –or change into – another substance.
• The contra-positive is true too; the Inability of a substance to combine with – or change into – another substance is ALSO considered to be a chemical property
Chemical Properties
U3: Atoms, Molecules & Matter
Eg. – Steel wool (iron) in a capped test tube of N₂ gas will not react (chem property), but in O₂ gas it will “rust” (oxidize) or react.
Will form a green copper carbonate when in contact with moist (water carrying) air.
Reddish brown, shiny
D = 8.92 g/cm³
Will form new substances when combined with nitric acid and sulfuric acid.MP = 1,085 degrees C
Forms a deep blue solution when it comes in contact with ammonia.Good conductor of heat and electricity.BP = 2,570 degrees C
Easily formed into sheets (malleable) & drawn into wires (ductile)
Chem. Prop.
Phys. Prop. (Extrinsic)
Phys. Prop. (Intrinsic)
Chem. Prop.Chem. Prop.
Phys. Prop. (Extrinsic)
Phys. Prop. (Intrinsic)
Phys. Prop. (Intrinsic)
Phys. Prop. (Intrinsic)
Phys. Prop. (Intrinsic)
Phys. Prop. (Intrinsic)
Will form a green copper carbonate when in contact with moist (water carrying) air.
Reddish brown, shiny
D = 8.92 g/cm³
Will form new substances when combined with nitric acid and sulfuric acid.MP = 1,085 degrees C
Forms a deep blue solution when it comes in contact with ammonia.Good conductor of heat and electricity.BP = 2,570 degrees C
Easily formed into sheets (malleable) & drawn into wires (ductile)
Chem. Prop.Phys. Prop. (Extrinsic)
Phys. Prop. (Intrinsic)
Chem. Prop.
Chem. Prop.
Phys. Prop. (Extrinsic)
Phys. Prop. (Intrinsic)
Phys. Prop. (Intrinsic)
Phys. Prop. (Intrinsic)
Phys. Prop. (Intrinsic)
Phys. Prop. (Intrinsic)