C4 Chemical Change

oxidation

reduction (oilrig)

loss of electron gain oxygen gain of electron loss of oxygen

some ___ is ____ using ______ the ______ gains ______. This can only happen with metals below _____ in the reactivity series

ores reduced carbon carbon oxygen carbon

reactivity series mnemonic …

purple slime can make a careless zebra insane try learning how camels surprise gorillas

potassium sodium calcium magnesium aluminium carbine zinc iron tin lead hydrogen copper silver gold platinum

learn (transition metals e.g iron)

yes

______ is pure because

gold, platinum its unreactive is is cleaned with chemical processes

acid + metal oxide

acid + base

acid + metal carbonate

acid+ metal

salt+ water

salt + water

salt + water + carbon dioxide

salt + hydrogen

Making soluble salts: (crystals)

Pick the right insoluble____ or ________ ____ and _____

2) Gently warm the dilute _____ a bit at a time using a Bunsen Buner. then ___ __ ___

3) add the ______ or _____ ____ to the acid until the ____ is in excess or no ______ are ______ indicating that the ____ has ______

4) Then _____ out the excess solid

5)To get crystals gently ____ the solution using a _____ _____ to ______ some of the water. Then stop ______ and let the solution ___. Crystals should form which can be filtered and dried

base metal carbonate acid acid turn it off. base metal carbonate base bubbles produced acid reacted filter heat water bath evaporate heating cool

aa more accurate way of measuring pH

pH probe

acids form _____ alkalis form ______ only in ______ this is called ______

H+ OH- ions in water neutralisation

Pipette

burette

measures only one volume of a certain solution measure different volume and let you add the solution drop by drop

Titration required practical:

Please fill this in later i cant do this right now sos.

acids produce ___ in water. They ____ in ______ ______ - producing ____.

SO HYDROCHLORIC GAS IS NOT ACIDIC

protons ionise aqueous solutions H+ ions

strong acids ____ ______, all the acid particles _______ to release ____ ___. whereas weak acids don’t fully ____. Only some _____ _____ ______ to release _____ ___.

ionise completely disassociate H+ ions dissociate acid particles dissociate H+ ions

ionisation of a weak acid is ______

reversible

acid reactions involve ____ ____ reacting with other substances. if the ____ of ___ ___ is higher, the ___ ___ _____ is _____ so strong acids are more ___ than weak acids of the same ______.

H+ ions concentration H+ ions rate of reaction faster reactive concentration

pH of an acid or alkali is the measure of ____ ___ in the solution. Every _______ on the pH scale of _____ the concentration of _ ___ ________ by a factor of ____.

H+ ions decrease 1 H + ions increases 10

concentrated

strength

how much acid in a certain volume of water what proportion f acid molecules ionise in water