C3.2.1 Hard and Soft Water

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

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)
  • 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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