Elements, Compounds & Mixtures
Matter & Bonding
Experimenting
Properties
Grab Bag
100
Metals which are highly reactive
What is a group one element?
100
The theory which explains the difference between elements, compounds and mixtures
What is particle theory?
100
The five indicators of a chemical reaction
What is light, heat, gas, colour change, precipitate?
100
Three examples of physical properties
What is malleability, ductility, lustre, colour, etc?
100
Can be abstract or tangible, but they help us explain our observations
What is a model
200
MgCO3
What is the chemical formula of magnesium carbonate?
200
An element which doesn`t need to bond to form a stable octet of valence electrons
What is (any noble gas)?
200
It is the test for carbon dioxide
What is the limewater test?
200
They are the definitions of malleable and ductile
What is "can be hammered into shape" and "can be drawn into wires", in chemistry terms?
200
IUPAC is the acronym for this
What is the International Union of Pure and Applied Chemistry?
300
Are three examples of elements which exist as diatomic molecules
What are N2, H2, O2, halogens
300
It is the type of bonding present in sodium nitrate
What is ionic bonding?
300
The test for the presence of hydrogen gas
What is the pop test?
300
A property of an ionic compound
What is high m.p./conducts when dissolved in solution, etc?
300
A differing property of magnesium metal vs magnesium oxide
What is shiny metal vs white powder solid / cant dissolve in water vs can dissolve, etc
400
A useful separation technique for separating the components of blood
What is centrifugation?
400
The number of covalent bonds in an oxygen molecule
What is a double covalent bond?
400
The type of analysis when masses are used
What is gravimetric analysis?
400
A property of a covalent network
What is hard, high m.p., doesn`t conduct, etc?
400
It is the balanced reaction for the combustion of octane
What is 2C8H18 + 25O2 ---> 16CO2 + 18H2O?
500
An element which is a gas at room temperature
What is (any of) H2, N2, O2, halogens?
500
The bonding characterised by a sea of mobile electrons
What is metallic bonding?
500
The calculation that can be performed to determine the relative amounts of the elements present in a compound or the compounds present in a mixture
What is percent composition?
500
A compound which is polar covalent and can be decomposed by electrolysis
What is water?
500
A formula which indicates the lowest whole number ratio of the elements present in a compound
What is empirical formula?
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