chemistry revision

metallic substance formed by combining two or more metals
1 of 67
the smallest part of an element
2 of 67
the number of protons in a nucleous, symbol z (also called a proton number)
atomic number
3 of 67
a substance that produces hydrogen when it desolves in water
4 of 67
compounds that react with acids to neutralise them
5 of 67
the minimum amount of energy needed for a given chemical reaction to take place
activation energy
6 of 67
the energy needed to breack a particular chemical bond
bond energy
7 of 67
a reaction vessel in which iron oxide is heated with coke and limestone to produce iron
blast fernace
8 of 67
iron containing between 2% and 5% carbon
cast iron
9 of 67
a substance that speeds up the rate of another reaction but is not used up or changed itself
10 of 67
fission neutrons cause further fission, so more fission neutrons are released. these go on to produce further fission
nuclear chain reaction
11 of 67
a chlorine atom that has gained one electron which gives it a negative charge
chloride ion
12 of 67
a technique used to seperate a mixture of substances using a stationary and moving phase
13 of 67
the process of burning
14 of 67
sand, cement and crushed rock mixed with water
15 of 67
heat transfer in a substance due to motion of particles in the substance
16 of 67
any numerical value
continuous variable
17 of 67
variable that has to be kept the same so it does not effect your investigation
controlled variable
18 of 67
heat transfer in a liquid or gas due to circulation currents
19 of 67
the bonds formed when atoms join together by sharing electrons
covalent bonds
20 of 67
electrons in a molecule wich do not belong to a single atom or bond
delocalised electrons
21 of 67
the variable you measure
dependent variable
22 of 67
a number given to a food additive in order to identify it in europe
E number
23 of 67
a substance that conducts electricity when molten or when dissolved in water
24 of 67
the arrangement of electrons around the nucleus of an atom
electronic structure
25 of 67
a substance that is made up of only one type of atom
26 of 67
negative particles found outside the nucleus of an atom
27 of 67
a chemical formula that shows the3 ratio of the number of atoms in a compound
empirical formula
28 of 67
a substance that stops the two liquids in an emultion from spreading
29 of 67
involving a net ABSORBTION energy
30 of 67
energy transferred from one place to another
energy transfer
31 of 67
involving a net RELEASE of energy
32 of 67
a substance added to the mixture to improve its flavor, texture or shell-life
food additive
33 of 67
a way of seperating a mixture of substances according to their different boiling points
fractional distillation
34 of 67
electrons that move freely inside a metal and are not held inside an atom
free electrons
35 of 67
giant structures held together by many covalent bonds which give them high melting points and hardness
giant covalent structures
36 of 67
one type of giant covalent structure
37 of 67
large numbers of atoms or ions arranged in a regular way
giant stucture
38 of 67
a compound containing only carbon and hydrogen
39 of 67
unable to dissolve in a given solvent
40 of 67
a chemical bond formed when one atom gives up one or more electrons to another atom
ionic bond
41 of 67
any process that atoms become charged in
42 of 67
a charged atom
43 of 67
atoms formed of the same element wich have different numbers of neutrons in their nuclei
44 of 67
fats and oils
45 of 67
their ions are needed to make chlorophyll
46 of 67
the rletive formula mass of a substance in grams
47 of 67
a formula that shos the total number od the different kinds of atoms in a molecule
molecular fomular
48 of 67
neutral particles found in the nucleus of an atom
49 of 67
inert gas that takes up 90% of the earths atomosphere
50 of 67
one of the six unreactive gases found in group 0 of the periodic table. They have a coplete outer shell of electrons. e.g. neon, argon, helium
noble gases
51 of 67
rocks that contain enough metal to make it economlical to extract the metal
52 of 67
the overall movement of water from an area of high concentration of water to an area of low concentration alons a concentratin gradient
53 of 67
losing electrons
54 of 67
a substance consisting of very large molecules made of smaller identical molecules called monomers
55 of 67
a solid material produced in a solution
56 of 67
positive particles found in the nucleus of an atom
57 of 67
calcium oxide
58 of 67
gaining electrons
59 of 67
the mass of an atom compared to carbon12. this is usually the same as or similar to the mass nuber of the elemnt
Relative atomic mass
60 of 67
a hydrocarbon which contains as many hydrocarbons as possible in each molecule
61 of 67
an alloy wich returns to its origional shape when it is heated
smart alloy
62 of 67
able to dissolve in a given solvent
63 of 67
splitting up a substance by means of heat
thermal decomposition
64 of 67
the large block of metallic elements in the middle of the periodic table
transition elements/metals
65 of 67
a hydrocarbon wich contains carbon-carbon double bons
66 of 67
oils in which the molecules contain carbon atoms joined together by carbon-carbon double bonds (C=C)
unsaturated oils
67 of 67

Other cards in this set

Card 2


the smallest part of an element



Card 3


the number of protons in a nucleous, symbol z (also called a proton number)


Preview of the front of card 3

Card 4


a substance that produces hydrogen when it desolves in water


Preview of the front of card 4

Card 5


compounds that react with acids to neutralise them


Preview of the front of card 5
View more cards


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »