Inorganic chemistry is the study of substances that:

do not contain carbon but may contain hydrogen

form a breathable film that does not cause comedones

used as a solvent in body creams

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Chapter 10 The Basic of Chemistry

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Questions 25

Answers

1
What is the science that deals with the composition of matter and how matter changes under different conditions?
Meteorlology
Biology
Chemistry
Organic chemistry
2
Nail polish is:
neither an organic nor inorganic substance
an organic substance
both an organic and inorganic substance
an inorganic substance
3
Molecules are made by combining:
elements
matter and energy
organic and inorganic
atoms
4
Inorganic chemistry is the study of substances that:
contain neither carbon nor hydrogen
do contain hydrogen but may contain carbon
do not contain carbon but may contain hydrogen
contain both carbon and hydrogen
5
Pure water has ___ a (an) pH.
negative
neutral
alkaline
acidic
6
Which of he following is known as universal solvent?
Acid
Water
Oil
Oxygen
7
Emulsions:
separate very slowly over time
separate somewhat quickly
separate immediately
never separate
8
Which of the following is a physical property?
Ability to burn
Color
Ability to harden
Ability to rust
9
What does pH stands for?
Potential hydrogen
Penetrating hydration
Potential helium
Percent hydrogen
10
Acids turn litmus paper from:
red to blue
blue to red
yellow to green
green to yellow
11
Solutions are usually:
opaque
bright in color
dark in color
transparent
12
An atom that carries an electrical charge is called a(n):
ion
neutron
proton
electron
13
Organic means that a substance contains both carbon and hydrogen from natural or ___ source.
health
homegrown
synthetic
man-made
14
The head of the surfactant molecule is:
Both of the answers are correct
lipophilic
hydrophilic
Neither of these answers is correct
15
For a product to have a pH, it must contain:
petroleum jelly
wax
water
oil
16
Silicones:
are more greasy than other oils
form a breathable film that does not cause comedones
give hair a dulled appearance
impart a grainyu feelon the skin
17
A(n) ___ is a sable uniform blend of 2 or more substances.
miscible liquid
solvent
solution
immiscible liquid
18
The human body is made:
entirely of energy
of both energy and chemicals
of neither energy nor chemicals
Entirely of chemicals
19
There are 90 naturally occurring:
orbits
elements
molecules
substances
20
A pH of 13 is:
neutrel
very acidic
somewhat acidic
highly alkaline
21
A ___ is a physical combination of matter in any proportions.
Compound molecule
Physical mixture
Pure substance
Chemical mixture
22
The ability of artificial nail to harden is an example of:
substance reorganization
a physical property
a chemical property
a state of matter
23
As alkalinity increases, acidity:
sometime increases, sometimes decreases
decreases
remain the same
increases
24
Glycerin is:
dark in color
used as a solvent in body creams
a colorful, dry substance
a bitter substance
25
Alkalis feel ___ on the skin.
slippery
hot
gritty
abrasive

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