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Chemistry exam
Chemistry exam
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Answers
1
The basic forms of matter are:
Gas, semi-hard solid and liquid
Liquid and gas
Solid, liquid and gas
Solids both soft and hard
2
Anything that occupies space:
Elements
lons
Matter
Plasma
3
Chemically treated water is referred to as:
‘lonized water
Ammonia water
Hard water
Soft water
4
An unstable, temporary mixture, that will separate over time:
Suspension
Solution
Emulsion
Ointment
5
The branch of science that deals with matter, how it interacts, combines and changes:
Electricity
Neurology
Chemistry
Biology
6
The element that distinguished a living being from a nonliving being:
Oxygen
Hydrogen
Carbon
Sulfur
7
If a mixture does not separate upon standing, it is probably a/an:
Unstable mixture
Solution
Solvent
Suspension
8
On the pH scale 7.1 to 14 indicates a solution is:
Alkaline
Combined
Acid
Neutral
9
Another term for an alkaline solution is a:
Base
Cation
Alkanolamine
Anion
10
Acid balanced means the solution is balanced between this range:
122-5.5
4.5-5.5
7.1-12.2
4.5-9
11
Matter is a substance that:
Melts metals
Is only in living things
Occupies areas we can’t see
Occupies space
12
Acid solutions have a pH of:
0-6.9
3-7
7.1-14
0-8.1
13
Hair is primarily made up of which 5 elements:
Oxygen, Carbon, Hydrogen, Nitrogen and Sulfur
Carbon, Sulfur, Hydrogen, Oxygen and Borax
Carbon, Oxygen, Helium, Nitrates and Sulfur
Helium, Sulfur, Carbon, Oxygen and Nitrates
14
In order to neutralize an alkaline solution you would add a/an:
PH balanced solution
Acid solution
Ammonia solution
Oxide solution
15
Two or more liquids that can be mixed together and stay mixed are said to be:
Immiscible
Suspensions
Heterogeneous
Miscible
16
The changing of matter where a it loses its identity and becomes something different:
Physical change
lonic bonding
Chemical change
Covalent bond
17
Pure water is considered to be:
Neutral
Acid
Alkaline
Reactive
18
A group of atoms chemically bonded together is a/an:
Physical change
Nucleus
Molecule
Lesion
19
If a solution has more hydrogen ions than hydroxide ions it is:
Alkaline
Combined
Acid
Neutral
20
Atoms have three parts:
Protons, electrons and neutrons
Cell membrane, nucleus and cytoplasm
Proton, Nucleus and Electron
Proton, Neutron and Electricity
21
A substance capable of dissolving another substance is called a/an:
Solvent
Solute
Emulsion
Binder
22
The two parts surfactant is the oil-loving end and the:
Volatile end
Emulsion end
Hydrophilic end
Lipophilic end
23
Something that has a definite weight, volume and shape is a:
Solid
Liquid
Gas
Liquid or gas
24
Surfactants are used to remove from the hair:
Oil
Beeswax
Chlorine
Alkaline build-up
25
A gum-like substance that helps unite two unmixable particles is called a/an:
Miscible matter
Hydroxy acid
Emulsifier
Alkanolamine
26
Two immiscible items that are held together with a binder:
Solution
Emulsion
Suspension
Ointment
27
A stable mixture where the solute is uniformly dispersed in a solvent:
Solution
Suspension
Ointment
Powder
28
PH stands for:
Potential Hydrogen
Professional Hairstylist
Potentially harmful
Physical Hydrogen
29
The simplest form of matter that cannot be broken down further without losing its identity:
Molecules
Compounds
Atoms
Elements
30
Atoms are the basic unit of a/an:
Molecules
Physical Change
Chemical change
Element
31
Neutral on the pH scale is represented by what number:
8.1
7
5.5
4.5-5.5
32
The binder or emulsifier used in shampoos is a:
Volatile alcohol
Surfactant
Alkanolamine
Suspension
33
Elements are defined by their number of:
Hydrogen bonds
Protons
Electrons
Carbon bonds
34
Elements are made up of:
Atoms
Covalent Bonds
Compounds
Molecules
35
The branch of chemistry that deals with living things (current or past) and contain the element carbon:
Inorganic elements
Organic biology
Inorganic chemistry
Organic chemistry