Intermolecular Forces and Gases
What molecular shape has two bonding pairs and one lone pairs around the central atom?
Bent
In a salt-water solution, what is the solute and what is the solvent?
Solute is salt and solvent is water
Give two factors that can increase the rate of a chemical reaction.
Two of: Catalyst, temperature, pressure, concentration, increased surface area
What invention is used to separate mixtures using a stationary and mobile phase?
Which of the 3 sciences did I NOT take during school?
Biology
Which intermolecular force is present in all molecular substances, regardless of polarity?
Dispersion Forces
What does molarity measure?
Concentration i.e. moles of substance per litre of solution
How does a catalyst increase reaction rate?
It lowers the activation energy required for successful particle collisions.
What alloy is made mainly from carbon and iron?
Steel.
What was my major in my Science degree?
Mathematics
What molecular shape is CH₄?
Tetrahedral
What ion makes a solution acidic according to Arrhenius?
H+ ion
Is combustion usually endothermic or exothermic?
Exothermic
Who developed the periodic table?
Dimitrii Mendelev
What regional town did I grow up in?
Townsville
What happens to gas volume when temperature increases assuming constant pressure?
Volume increases.
What is a supersaturated solution?
A solution that contains more dissolved solute than the solvent can normally hold
What makes a collision successful?
Correct orientation and sufficient energy.
Which scientist discovered the nucleus by firing alpha particles at thin gold foil?
Ernest Rutherford
I was out of action mid-last term due to a knee injury. What caused said knee injury?
Dancing badly
A substance has a very low vapour pressure. What does this suggest about its intermolecular forces?
It has strong intermolecular forces that limit the substances ability to escape into gaseous form.
What is the difference between strength and concentration of an acid?
Strength refers to how much an acid dissociates in water whereas concentration measures how much acid is dissolved.
What does the area under a Maxwell Boltzmann curve represent?
Total number of particles
What is the main industrial procedure for the production of ammonia?
Haber Process
Who is my favourite musical artist?
Lorde