AQA GCSE Chemistry Module 10 Using Resources - summative mind-map
This document serves as a multipurpose tool to aid your GCSE revision, made by a Grade 9 student. It contains elaborate details of the module, including key learning points from the AQA specification and a profile of all RPAs from...
reuse > same product ; different use PRODUCING POTABLE WATER : HABER PROCESS -
the industrial proc
materials to create
recycle > use same a new or
producing ammonia from large amou
different product
.
1 Freshwater sources
hydrogen and nitrogen to produce
Humans use Earth's resources for : rivers (surface water) nitrogen-based fertilisers to grow our f
·
↳ Lakes +
a
↳ warmth food 2 Groundwater sources + iron catalyst Ben
↳ shelter ↳
transport ↳
aquiferstrodes (soakedin rainwater) N2 +
3H2i
"
[NHz (thea
& ↑
M
Natural resources are supplemented by
·
3 Desalination 450° C
fromair from ammon
200 atm
agriculture : ↳ heat sea water until it
evaporates burning
condenses REVERSIBLE R
↳ crops -
providefood +
hydrocarbons
↳ test for sodium ions (Nat)
↳ timber -
construction
↳ flametest v= flame
WHY ?
orange
:
↳
cotton-clothing ·
450 :
Lowertemp-higher yiel
↳ test for chloride ions (CL)
oruenidesusecupuice
↳ fuels-fossil fuels,
I
add silver nitrate + nitric acid : higher temp =greater R .
↳ finite
ad ↳
v
↳
higher cost
precipitate
= white
Using renewable resources means that we can
·
200 atm
↳ measure (pH indicator) and
adjust
:
higher pressure
=
high
provide more products through sustainable (titration) pH level ↳ more expensive
development Reverse Osmosis risk to
: 4 ↳
safety
↳ development that meets the needs the
of ↳ water
put under high pressure *
CORROSION - the process
by which
present without
compromising the
ability ↳ passed through a membrane substances found in the environ
for future generations to meet their ownneeds
.
↳ anows
with
tiny pores)
water molecules ;through
↳ corrosion
↳ both
of iron (Fe)
is called
O2 AND HeO must be prese
prevents ions and other molecules
X
from passingthrough
no
POTABLE WATER -> water that is safe to drink
. ~ b
T
-
Low %
ofdissolved substances 5 Waste Water Trealment
·
-
r phag 6 5 8 5
many purification stages
·
↳ a
:
. .
resis
& ↑
&
·
no microbes SOURCES OF WASTE WATER :
↳ used in electroni
& SEWAGETREATMENT eg fertiliser The Earth's
supply metal ores are scarce
: · ·
surface run-off ↳ a roc
-screening containing a metal in compo
·
animal waste metal from ones should
onlybe extracted if it contains an ec
· ·
↳
removalg large material
leg twigs plastic dirt)
.
, , amount within it
>
-
contain only small am
extracted from ow
grade ores' bytwo alternativ
↳ coarse filter
.
3 Industria ·
copper can be
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