C3.2.1 Hard and Soft Water

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L W X J F H U F I Y Q N X S H I J X B B C
M L N S K E O G A R X J R O M L C P C G G
M H V Q L S M H Y K S W I I G Y K M F E S
P T X D I S T I L L A T I O N A B B R K F
J X A H N F C T C W E C F Y U S R U V J D
O T K G F Q J G M D I O H H F S P F T X N
H R N I F V M Q F O A V O S X R E J Y A M
P I O N E X C H A N G E C O L U M N W H T
B T F S K Y T T X H A R D W A T E R T G P
C H K D I X Q A T W G D D D M O P T C M G
Y A O K L Y S B Q J P C T P W U T F C E L
T H E R M A L D E C O M P O S I T I O N O
I B U F J O V A H I F P Q Y G A J T F B A
T E M P O R A R Y H A R D W A T E R A E N
X T X T X J T X U I H U T C P V X I F D T
P S U L A Q A S O F T W A T E R E A A O T
R S O D I U M C A R B O N A T E S G A M J
L O S O L W R F V F S K C F P D S N U Q M
F U L M Y F W C M V H R G M B S L H W I P
O W A U J S D V B K U P X I A V N A F X Q
P B O T A F S X E R I P N E C W B G U G H

Clues

  • A piece of equipment that softens water (3, 8, 6)
  • Calcium and Magnesium ions for ppts when ____ softens hard water (6, 9)
  • Contains Calcium and magnesium ions (4, 5)
  • Contains Hydrogencarbonate ions (9, 4, 5)
  • Forms a lather (4, 5)
  • Our water is.... (4)
  • Our water isn't... (4)
  • Seawater is boiled and the vapours cooled to form pure water (12)
  • This reaction (2HCO3 - CO3 + H2O) happens when temporary hard water is boiled. What's the scientific name? (7, 13)

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