Structure 1
What is the difference between a homogenous and heterogenous mixture?
A homogeneous mixture has uniform composition and properties throughout (e.g. air)
A heterogeneous mixture has non-uniform composition, so its properties are not the same throughout (e.g. concrete or orange juice with pulp)
Ionic compounds exist as three-dimensional lattice structures, what type of formula is used to represent their 'molecular formula'?
Describe what happens to atomic radius as you move across a period
Decreases
What galaxy does Earth belong to?
Milky Way
What year was the first iphone released?
2007
How many p sub-orbitals are there?
3 (px py pz)
Explain the electrical conductivity of ionic substances
Cannot conduct as solids, ions are fixed in lattice/unable to move
Conducts when molten or dissolved, ions are free of lattice structure
What are the products of group I metals in water?
metal hydroxide and hydrogen
What is the most watched video on YouTube
"Baby Shark" by Pinkfong
What is the strongest muscle in the human body?
The jaw (masseter muscle)
What is the electron arrangement in a copper atom?
1s2 2s2 2p6 3s2 3p6 3d10 4s1
Cu and Cr are the exceptions when applying the Aufbau principle
On a mini white board, sketch a possible Lewis structure for sulphur trioxide (SO3)
Teacher check
Which element (not including any group 18 elements) has the highest ionisation energy?
Fluorine
In what year was the first moon landing?
1969
Which country drinks the most coffee per capita?
Finland
Give 3 causes for gases to deviate from ideal gas behaviour
High pressure
Low temperature
Strong intermolecular forces
High density
Deduce the electron and molecular domain geography of PCl3 and determine the bond angle
Electron domain: tetrahedral
Molecular domain: trigonal pyramidal
Bond angle: 91-108°
Give the equation for the reaction of sulphur dioxide in water to form acid rain (acid deposition)
SO2 + H2O --> H2SO3 (sulphurous acid)
In the wizarding sport of Quidditch, what is the name of the primary ball used to play and score goals?
Quaffle
Which instrument does Lizzo play?
What is the molar mass of a gas at 200.0°C and 1.00x105 Pa with a density of 2.544x103 g m-3?
100
Explain the polarity of the SO2 molecule
Bonds are polar/electronegativity difference between S and O
Dipoles do not cancel out/bond angle less than 180°
How many structural isomers of C5H12 exist?
3
If you bowled a perfect game, what would your score be?
300
Who painted the ceiling of the Sistine Chapel?
Michaelangelo