C3.2.1 Hard and Soft Water

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

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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