WorksheetsChapter 12 basics of chemistry
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
The term organic does not mean “natural.”
a)
true
b)
false
2.
The nucleus of an atom consists of protons and neutrons and the number of protons determines the element.
a)
true
b)
false
3.
Redox reactions are responsible for the chemical changes created by haircolors, hair lighteners, permanent wave solutions, and thioglycolic acid neutralizers.
a)
true
b)
false
4.
All oxidation reactions are exothermic reactions.
a)
true
b)
false
5.
Only products that contain water can have a PH
a)
true
b)
false
6.
_____________ means multiples of 10.
a)
logarithm
b)
volatile organic
c)
oxidizing
d)
miscible
7.
_______________change refers to a change in the form of a substance, without the formation of a new substance.
a)
celestial
b)
material
c)
physical
d)
chemical
8.
_______________ change is when a new substance is formed
a)
triangular
b)
chemical
c)
physical
d)
astral
9.
_____________ are substances that contain carbon and evaporate quickly and easily.
a)
inorganic
b)
logarithm
c)
volatile organic compounds
d)
suspensions
10.
__________________ are formed when two or more immiscible substances, such as oil and water, are united with the aid of a binder.
a)
mixture
b)
recipe
c)
suspension
d)
emulsions
11.
_______________ chemistry is the branch of chemistry that deals with all substances that do not contain carbon.
a)
lab created
b)
inorganic
c)
organic
d)
store bought
12.
_______________ chemistry is the branch of chemistry that deals with all substances in which carbon is present.
a)
organic
b)
inorganic
c)
miscable
d)
dimension
13.
______________ agents are substances that readily release oxygen.
a)
bulla
b)
solvent
c)
oxidizing
d)
deoxidizing
14.
_______________ liquids are mutually soluble, meaning they can be mixed into stable solutions.
a)
miscible
b)
inorganic
c)
molecule
d)
oxidizing
15.
_______________ are any substances that are able to dissolve another substance.
a)
organic
b)
potion
c)
magical
d)
solvents
16.
_______________ is an unstable mixture of undissolved particles in liquid.
a)
suspension
b)
toxic
c)
mixable
d)
solvent
17.
Two or more atoms that are joined together chemically form a __________
a)
disaster
b)
molecule
c)
cell
d)
fusion
18.
The separation of an atom or molecule into positive and negative ions___________
a)
Ionization
b)
Electrons
c)
Silicone
d)
Cation
19.
A sweet, colorless, odorless, oily substance used as a moisturizing agent
a)
surfactant
b)
molecule
c)
glycerine
d)
soap
20.
A solution that has a pH below 7.0 is ____________
a)
acidic
b)
alkaline
c)
neutral
d)
you gotta know this by now
21.
A change in the chemical and physical properties of a substance by a chemical reaction that creates a new substance is a __________________
a)
chemical change
b)
physical change
c)
visual change
d)
stable change
22.
Also known as bases; compounds that reacts with acids to form salts is/are _____________
a)
obicularis occuli
b)
metl salts
c)
alkalis
d)
acid
23.
Basic unit of matter with a nucleus at the center
a)
cell
b)
stimuli
c)
daughter cells
d)
atom
24.
Rapid oxidation of a substance accompanied by the production of heat and light
a)
combustion
b)
compound
c)
element
d)
acidic
25.
Easily evaporating is______________
a)
volatile alcohols
b)
solvent
c)
liquid
d)
gas
100 %
