C3.2.1 Hard and Soft Water

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

Clues

  • 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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