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Chapter 7 Flashcards Chemistry > Chemistry > Flashcards

Chemistry Flashcards

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0
Q

Acid alkali neutralization reactions

A

When an acid is mixed with alkaline in equal proportions to neutralize each other and form wAter and salt

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1
Q

Acid mantle

A

Protective Barrier lipids and secretion on the surface of the skin

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2
Q

Acids

A

Substance with pH below 7

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3
Q

Air

A

Gaseous mixture that makes up earths atmosphere

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4
Q

Alkalis

A

Know as bases compounds that reacts with acids to form salts

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5
Q

Anion

A

An ion with negative charge

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6
Q

Antioxidant

A

used to stabilize skin care products by preventing oxidation that would otherwise cause a product to turn rancid

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7
Q

Atoms

A

Smallest chemical components of an element that still retains the properties of that element

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8
Q

Cation

A

Ion with positive charge

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9
Q

Chemical changer

A

Change in chemical properties of a substance that is a result of the chemical reactions in which a new substance or substances are formed that have properties different from the original

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10
Q

Chemical compounds

A

Combinations of two or more atoms of different elements United chemically with fixed chemical compositions proportions and properties

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11
Q

Chemical properties

A

Characteristics that can only be determined by a chemical reaction and a chemical change in the identity of the substance

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12
Q

Chemistry

A

Composition structures and properties of matter

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13
Q

Combustion

A

Rapid oxidation of any substance by heat and light

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14
Q

Compound molecules

A

Also know as compounds two or more atoms of different elements

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15
Q

Element

A

Simplest form of matter cannot be broken down

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16
Q

Element molecules

A

Molecule containing two or more atoms of the same element in definite proportions

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17
Q

Emulsions

A

An unstable physical mixture of two or more immiscible substance that normally will not stay blended

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18
Q

Free radicals

A

Unstable molecules that cause inflammation disease or aging in body that cause wrinkles

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19
Q

Gases

A

Matter without a definite shape or size no fixed volume or shape

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20
Q

Hydrogen

A

Colorless odorless tasteless has lightest element known

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21
Q

Hydrogen peroxide

A

Chemical compounds of hydrogen and oxygen

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22
Q

Hydrophilic

A

Easily absorbs moisture capable of combining with or attracting water

23
Q

Hydroxide

A

An anion with one oxygen and on hydrogen

24
Q

Immiscible

A

Liquids that are not capable of being mixed together

25
Q

Inorganic chemistry

A

Study of substances that do no contain the element carbon but contain hydrogen

26
Q

Ion

A

Atom or molecule into positive or negative ions

27
Q

Ionization

A

Separation of an atom or molecule into negative or positive

28
Q

Lipophilic

A

Having an affinity for or and attraction to fat and oils

29
Q

Liquids

A

Matter that has volume no definite shape of its container

30
Q

Logarithmic scale

A

A method of displaying date in multiples of 10

31
Q

Matter

A

any substance that occupies space and has mass

32
Q

Miscible

A

Capable of being mixed

33
Q

Molecule

A

A chemical combination of two or more atoms

34
Q

Nitrogen

A

A colorless gaseous element that makes up about four fourths of air in our atmosphere

35
Q

Oil in water emulsions

A

Oil droplets dispersed in water the aid of an emulsifying agent

36
Q

Organic chemistry

A

Study of substances that contain carbon

37
Q

Oxidation

A

Either the addition of oxygen or loss of hydrogen chemical reaction that combines a substance with oxygen to produce an oxide

38
Q

Oxidation reduction

A

Also know az redox chemical reaction in which oxidizing agent is recurs and the reducing agent is oxidized

39
Q

Oxygen

A

Most abundant element on the earth

40
Q

Oxidize

A

To combine or cause a substance to combine with oxygen

41
Q

pH

A

Potential hydrogen represents the quality of a new substance

42
Q

Physical change

A

Change in form or physical properties of a substance without a chemical reaction

43
Q

Physical mixture

A

Combination of two or more substances United physically

44
Q

Physical properties

A

Characteristics that can be determined without a chemical reaction and that do not cause a chemical change in the identity of the substance

45
Q

Redox reactions

A

Chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized

46
Q

Reduction

A

Process through which oxygen is subtracted from or hydrogen is added to a substance through a chemical reaction

47
Q

Solids

A

A state of matter that is rigid with a definite size and shape such as ice

48
Q

Solute

A

A substance that dissolves the solute to form a solution

49
Q

Solutions

A

A uniform mixture of two or more mutually musicale substances

50
Q

Solvent

A

A substance that dissolves another substance to form a solution

51
Q

States of matter

A

The three different physical forms of matter solid liquid or gas

52
Q

Surfactants

A

Reduce surface tension between the skin and the product to increase product spread ability

53
Q

Suspensions

A

Unstable mixture of two or more immiscible substances

54
Q

Water

A

Most abundant of all substances

55
Q

Water in oil emulsion

A

Droplets if water dispersed in oil

Chapter 7 Flashcards Chemistry (1 decks)

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