covalent bonding
covalent bonding
what is bonding which occurs between two non metals when they react together?
ionic bonding
what is the bonding which occurs between a non metal and a metal?
molten substance
what is a melt?
aqueous
what is the state of an element dissolved in water?
potassium
What is the highest metal in the reactivity series?
in a dot a cross diagram they represent electrons
what do the crosses represent in a dot and cross diagram?
they loose electrons to form positive ions
how to metals form ions?
cryolite
what is used to lower aluminiums melting point?
hydroxide ions
what are the ions in the water of the electrolyte?
displacement
What is a reaction where a less reactive element substitutes a more reactive element?
a giant covalent structure
what is a three dimensional structure joined by covalent bonds?
anion
what is a negatively charged electron?
electrolyte
what is a compound that undergoes electrolysis?
Because water contains Hydrogen and Hydroxide Ions.
- Why is electrolysing solutions more complicated than melts?
- Why is hydrogen and hydroxide ions sometimes produced at the electrodes?
please stop calling me a careless zebra instead try learning how copper saves gold
what is an acronym to remember the reactivity series?
they have strong covalent bonds that require a lot of energy to break
why do covalent structures have a high melting point?
ionic lattice
hydrogen is produced
what is produced when the metal is more reactive than hydrogen?
half equation
iron, oxygen and water
what are the three substances that are essential of rusting to take place?
allotrope
what is a different physical form that an element can exist in?
(allow example- carbon --> diamond, graphite and charcoal)
valence electron
what is an outer shell electron that can participate in the formation of chemical bonding?
oxygen reacts with carbon in aluminium electrolysis so the electrode burns
why does the positive electrode in aluminium electrolysis have to be replaced often?
electrochemical series
what is a list of metals and hydrogen ranked based on their tendency to lose electrons?
thermit
what is the name of the reaction where aluminium displaces iron?