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Duplicate of Chemistry
Duplicate of Chemistry
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Introduction of Chemistry in Cosmetology
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
Solvents that mix easily are:
miscible
emulsion
immiscible
2
The smallest particle of an element is the:
nucleus
electron
molecules
atom
3
The pH of hair is:
4.5-5.5
2.5-3.5
3.5-4.5
7.0-8.5
4
The pH scale measures:
melting point and boiling point
acidity and alkalinity
weight and density
purity and hardness
5
An alkaline causes the hair to:
soften and swell
close the cuticle
stretch and return
harden and shrink
6
A liquid used to dissolve a substance is called the:
volatile substance
concentrate
solute
solvent
7
When ice melts and becomes water, it is a:
physical change
chemical change
8
When two of the same atoms are joined together by a chemical bond, the result is a/an.
molecule
suspension
compound
element
9
An alteration of the properties of a substance without the formation of any new substance is a
solution
physical change
chemical change
10
When the hydrogen in an acid is replaced by metal, the results is a/an:
an acid
mixture
alkali
salt
11
When two or more elements combine chemically in definite weight proportions, they form a:
compound
mixture
suspension
solution
12
Matter is anything that:
contains carbon
is soluble is water
occupies space
is solid or liquid
13
Water is composed of:
2 volumes hydrogen and 1 volume oxygen
2 volumes hydrogen 2 volumes oxygen
14
When water boils, it is changing from one state of matter to the another, from;
liquid to gas
gas to liquid
solid to gas
solid to liquid
15
The simplest form of matter that cannot be decomposed by chemical means is a/an?
gas
emulsion
oxide
element
16
Emulsions are mixtures of two or more:
miscible substances
immiscible
solutions
surfactants
17
Sodium chloride is an example of:
an alkali
an oxide
an acid
a salt
18
Distilled water with a pH of 7 is considered to be:
alkaline
neutral
acid
mild
19
Organic Chemistry is the study of all substances containing:
hydrogen
carbon
water
20
The most abundant element on earth is:
ammonia
hydrogen
nitrogen
oxygen
21
When oxidative permanent color is applied to the hair, it creates a/an:
acid reaction
alkaline reaction
physical reaction
rapid combustion
22
Hydrogen peroxide is an example of a/an:
oxide
salt
acid
alkali
23
Grass, gasoline, and antibiotics are examples of:
Organic
solid matter
liquid matter
Inorganic
24
The second most abundant element is known is:
oxygen
peroxide
nitrogen
hydrogen
25
Objects with a definite form are examples of:
elements
bases
gases
solids