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WorksheetsChemical Compounds
Total questions: 15
Worksheet time: 9mins
Water:
H2O2
H2O
O2
H2
HO2
Riddle: I am used in dishwasher soap and medicine but I am not an ammonia.
Dioxidonide (O2H)
Molecular Oxygen O2
Ozone O3
Ammonia (NH3)
Hydrogen Peroxide (H2O2)
Methane:
CH4
CH3
CH
C2
C2H2
SiO2 (Silicon+2 Oxygen)
Dihydroxysilicon
Quartz
Silica
Silylene
Silicon Oxide
Riddle: Im used for car fuel in around 10% of gasoline is made out of me, and I am an alcohol.
Hydrazine N2H4
Ammonium NH4+
Methane CH4
Ethanol CH3CH2OH
Liquid Molecular Oxygen O2
RIDDLE: I am a noble gas used for stainless steel manufactering.(Hint: these are all noble gases)
Helium
Neon
Argon
Krypton
Xexon
What is the most common ore of lead and then select its chemical formula.
Pyrite
Galena
FeS2
PbS
Riddle: I am the most toxic and deadliest gas and my chemical formula is SO
Sulfur Monoxide
Sulfur Dioxide
Carbon Dioxide
Carbon Monoxide
Sulfur Trioxide
My name is Sphalarite I am an zinc sulfide with iron added to it. What does "Sph" mean in my name?
Zinc
Sulfur
Iron
BrI:
Iron Bromide
Bromine Dioxide
Bromine tridide
Bromine Iodide
Bromine Quadadide
Sodium Chloride: (Hint both of them are ions that are + and -)
(a)
Select some to alloy to make steel
Iron [Fe]
Copper [Cu]
Titanium [Ti]
Carbon [C]
Hydrogen [H]
Select some to alloy to make Bronze
Copper [Cu]
Tin [Sn]
Boron [B]
Aluminium [Al]
Oxygen [O]
Select 3 answers of the below that makes the building blocks of life.
Phosphorus [P], Oxygen [O]
Nitrogen
Oxygen [O], Iron [Fe]
Carbon [C], Hydrogen [H]
Sodium [Na], Carbon [C]
What element you think is the most important?
Hydrogen [H]
Carbon [C]
Nitrogen [N]
Oxygen [O]
Phosphorus [P]
