unit 1 chapter 2 (science b)

HideShow resource information
whats an element made up from?
made up of one atom
1 of 32
what does a compound contain?
made up of more than one type of atom bonded together
2 of 32
what does a mixture contain?
made of more that one type of element or compound NOT bonded together.
3 of 32
whats the charge of protons neutrons and electrons?
protons are positive neutrons are neutral and electrons are negative
4 of 32
whats there charge?
protons= 1 neutrons= 0 and electrons= -1
5 of 32
whats the mass?
protons=1 neutrons=1 electrons= almost zero
6 of 32
what does the periodic table tell you?
the atomic number and the mass number
7 of 32
whats the atomic number?
the number of protons which is the same as the number of electrons
8 of 32
how do you work out the mass number?
number of protons+number of neutrons
9 of 32
how do you find neutrons?
mass number-atomic number
10 of 32
whats a molecule?
two or more atoms that are chemically bonded together
11 of 32
whats an ion?
a molecule or atom that becomes positively or negatively charged
12 of 32
hows an ion created?
an ion is created when an atom loses or gains electrons. gaining electrons makes a negative ion. and losing electron makes a positive ion.
13 of 32
what can gold straight from the ground be made into?
jewllery,electronics
14 of 32
what can marble straight from the ground be made into?
building
15 of 32
what can limestone straight from the ground be made into?
building,making other materials
16 of 32
what can sulfur straight from the ground be made into?
sulphuric acid,fertilisers,car batteries
17 of 32
what is crude oil a mixture of and how can it be separated?
hydrocarbons and can be separated by fractional distillation
18 of 32
whats crude oil used for?
fuels and plastics
19 of 32
how do you separate rock salt?
through filtration and evaporation
20 of 32
whats rock salt used for?
flavouring food
21 of 32
whats an ore?
its a rock which economically worth while to extract a metal.
22 of 32
whats a reducing agent?
removes oxygen from oxides
23 of 32
whats a reactivity series?
this is a list of chemicals in order of reactivity.
24 of 32
how are gases separated from the air?
by liquefying the air and separating the liquids by fractional distillation
25 of 32
whats argon used for?
mainly for lighting
26 of 32
whats the disadvantages of mines and quarries?
damage the appearance of the landscape,dust and nose affect the nearby area,increase traffic and pollution,processing ores produces carbon dioxide which adds to global warming,
27 of 32
whats sustainability?
using resources in a way that balances between human and environmental needs
28 of 32
whats stake holders?
they're consulted and long term impact on communities is considered.
29 of 32
whats phytomining?
way of reducing impact of mine and quarries
30 of 32
what are the total mass of products and the total mass of reactants?
they will always be the same as each other
31 of 32
who does balanced symbol equations help?
chemists.it helps them calculate how much raw materials they need
32 of 32

Other cards in this set

Card 2

Front

what does a compound contain?

Back

made up of more than one type of atom bonded together

Card 3

Front

what does a mixture contain?

Back

Preview of the front of card 3

Card 4

Front

whats the charge of protons neutrons and electrons?

Back

Preview of the front of card 4

Card 5

Front

whats there charge?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Applied Science resources:

See all Applied Science resources »See all science b resources »