First Sentence
Complete the passage, using words from the list. Read the first page
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These are the most frequently used words in this book.
acid
added
air
aluminium
arrangement
atomic
atoms
below
between
bonds
calcium
called
carbon
carbonate
change
chemical
chloride
chlorine
compounds
contains
copper
different
dioxide
dissolve
down
electricity
electrode
electrolysis
electrons
elements
energy
equation
ethanol
example
explain
fig
form
formed
formula
gas
gases
group
hydrogen
hydroxide
ionic
ions
iron
layer
lead
liquid
magnesium
mass
materials
metals
mixture
mole
molecules
negative
number
oil
oxide
oxygen
particles
place
point
polymers
positive
potassium
process
produce
produced
products
properties
pue
question
reaction
reactive
reacts
relative
salt
sample
shows
sodium
solid
solution
steel
structure
substances
sulphate
sulphuric
table
take
temperature
two
use
used
volume
water
write
zinc
