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User guide
Teachers’ Guide
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Substances
A1 Melting/Freezing
B1 The particle theory
C1 The gas state
D1 The three states
E1 Density
Mixtures
F1 Melting behaviour
G1 Evaporation of water
H1 Condensation of water
I1 Recognising dissolving
J1 Solubility
K1 Separating mixtures
Changing substances
L1 Structures
M1 Chemical change
Advanced substances
N1 Crystals
O1 Change of state
P1 Gas and pressure
Advanced mixtures
Q1 Diffusion
R1 Rate of evaporation
S1 Rate of dissolving
T1 Chromatography
Advanced changes
U1 Formulae
V1 Fire
W1 Acids
W4.3 NITRIC ACID AND CALCIUM CARBONATE (3)
LINKS
The crystals are calcium nitrate:
Ca(NO
3
)
2
The structures of the substances we know about are shown below. There is one more new substance formed in the reaction – try to work out what it is
before
clicking on the question mark:
Show balanced equation
Notes: see Teachers’ Guide
teachers’ guide w6
more info
w1: acids
w2: hydrochloric
w3: sulfuric
w4: nitric
w5: patterns
more info
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a Science Enhancement Programme CD-ROM 2005
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