Flashcards in Chemistry Deck (84)
How are elements arranged in the periodic table?
Increasing atomic number
What group are the alkali metals?
What group are the alkaline earth metals?
What group are the halogens?
What group are the noble gases?
As you go down a metal group, what happens to reactivity?
As you go down a non-metal group, what happens to reactivity?
How are new substances formed in a chemical reaction?
Atoms and electrons are rearranged
What are the three factors that affect the position of an equilibrium?
Concentration, temperature, pressure
What can Avogadro's number be used to calculate?
The number of particles in one mole of a substance
How do you calculate concentration?
Either mass or moles divided by volume
How to calculate percentage yield
(Actual yield/predicted yield) x 100
How do you calculate solubility?
Divide the mass of the solute by the mass of the solvent and multiply by 100
What is a saturated solution?
A solution where no more solute can be dissolved in the solvent
What are physical processes used for?
What are chemical processes used for?
Displacing elements from compounds`
What are miscible liquids?
A 'mixable' liquid
How to tell if a substance is pure using chromatography
There will only be one line produced
What type of reaction is the neutralization of a base and an acid?
What will be produced when the oxides of most non-metals react with water?
An acidic solution
What type of reaction is bond breaking?
What type of reaction is bond making?
What is an electrode?
A conductor through which electricity can travel
What is a cathode?
The negative electrode
What is an anode?
The positive electrode
What kind of current is used in electrolysis?
Why can't alternating current be used in electrolysis?
The cathode and anode would be constantly changing
What happens at the cathode?
The cations are reduced
What happens at the anode?
The anions are oxidized