lOMoARcPSD|261202 28
ot.
n the pot.
ess
ange
Observations Before
Interaction
Observations
After
Interaction
How was
mass
conserved?
Proof of a Chem
Reaction
Exam
ple:
Sugar
+ Heat
The sugar is in tiny white
particles in a pile. Heat is
not seen but is implied by
the heat source. The pile
of sugar in the pot has a
mass of 100 grams.
There is a solid,
light brown
mass at the
bottom of the
pot. It has a
mass of 100
grams.
The mass of
the sugar is
the same in
melted form
as it is in
solid crystal
form.
There was not a c
reaction. Sugar di
change composit
only melted. Melti
is a physical prop
this is a physical
Steel
Wool
+
Oxyge
n (Fire)
Small Oxygen will affect metal and
wool in such a high amount.
The Oxygen will
disintegrate it since
it is not a strong
type of metal.
Mass was not
conserved since it
w
a
s
m
a
d
e
i
n
to
a
s
h
.
Fire against steel wool
W
i
ll
t
ur
n
i
n
to
a
s
h
.
Egg +
Heat
Eggs and heat will boil and cook
the egg.
The egg has cracked
and is bubbling
which means it is
cooking.
The Shell was
t
a
k
e
n
off
t
h
e
e
gg
.
Th
e
E
gg
b
o
i
l
e
d
a
n
d
n
o
w
H
h
and is edible to eat.
Water
+ Heat
Water will boil which will produce
steam.
The Water will
evaporate into air
and then leave the
pot without water.
It was not
conserved since it
evaporated into
t
h
e
a
i
r
.
Th
e
r
e
i
s
n
o
w
a
t
e
r
l
e
ft
i
n
I
Zinc +
Hydro
gen
Chlori
de
Putting the object in chemicals can
affect mass.
Some mass has led
the object now it
isles heavy to
contain in hand.
It was not
conserve sine th
chemicals affected
the mass therefore
making it weigh
less.
Th
e
Ob
j
e
c
t
n
o
w
w
ei
gh
s
l
L
e
b
e
fo
r
e
b
e
c
a
u
s
e
of
t
h
e
c
h
Ch
was put into it.
lOMoARcPSD|261202 28
