1-
atom
2-
molecule
3-
element
4-
ion
5-
reaction
6-
mixture
7-
acid
8-
base
9-
gas
10-
liquid
11-
solid
12-
to transition
13-
ph
atom
atom
noun
a
æ
t
t
o
ə
m
m
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(science) the smallest part of a chemical element that is found in the nature

example
Example
Click on words
The atom is composed of a nucleus containing protons and neutrons, surrounded by electrons.
Atoms of different elements have distinct properties based on their atomic structure.
molecule
molecule
noun
m
m
o
ɑ
l
l
e
ə
c
k
u
ju
l
l
e

the smallest structure of a substance consisting of a group of atoms

element
element
noun
e
ɛ
l
l
e
ə
m
m
e
ə
n
n
t
t

a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties

ion
noun
io
aɪɑ
n
n

a particle with a net electric charge due to loss or gain of one or more electrons

reaction
noun
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/ɹiˈækʃən/

(chemistry) a process in which several chemicals combine and form different substances

mixture
noun
m
m
i
ɪ
x
ks
t
ʧ
u
ɜ
r
r
e

(chemistry) a combination of two or more substances without forming a chemical bond or any chemical reaction

acid
noun
a
æ
c
s
i
ə
d
d

a water-soluble chemical substance that contains Hydrogen and has a sour taste or corrosive feature with a PH less than 7

base
noun
b
b
a
s
s
e

(chemistry) a substance that can accept protons, donate electrons, or release hydroxide ions in aqueous solution

gas
gas
noun
g
g
a
æ
s
s

the state of a substance that is neither solid nor liquid

liquid
liquid
noun
l
l
i
ɪ
q
k
u
w
i
ɪ
d
d

a substance such as water that flows freely, unlike a gas or a solid

solid
solid
noun
s
s
o
ɑ
l
l
i
ɪ
d
d

a substance that is firm and has a certain shape, not like gas or liquid

to transition
Verb
t
t
r
r
a
æ
n
n
s
z
i
ɪ
t
ʃ
io
ə
n
n

to make something change from a particular state, condition or position to another

ph
noun
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/ˈpiˈeɪtʃ/

a quantitive mesasure used for determining how acidic or alkanic something is on a scale of 0 to 14

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