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15 questions
Carbon
C
Ca
Cu
Cr
Neon
No
Na
Ne
Ni
Sodium
Ne
S
Na
Mg
Sulfur
S
Sn
Na
Sr
Fluorine
Fl
Ra
Fr
F
Copper
Cu
C
Cr
Co
Zn
Magnesium
Silver
Zerconium
Zinc
Ar
Aluminum
Argon
Radon
Oxygen
O
Oxygen
Carbon
Boron
Silicon
K
Tungsten
Fluoride
Krypton
Potassium
__________is a pure substance.
Chemical symbol of gold
Substances which undergo a chemical change in reaction are called____
2Nacl + Cl2 ------> ___________
CaCO3 (S) --heat------> CaO(S) + _____
CO2 (g)
CO2(g)
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