Hard and soft water

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

Clues

  • __ hard water remains __ upon boiling? (9, 4)
  • Hard water can __ strength of bones and teeth? (8)
  • Hard water can lead to __ risk of heart disease? (7)
  • Hard water contains __ and __ ions? (9, 3, 6)
  • Hydrogencarbonate ions __ upon heating to product __ ions? (9, 9)
  • Soft water forms a __ easily with soap? (6)
  • Temporary hard water contains __ ions? (17)
  • The ions in hard water react with soap to form __? (4)
  • These carbonate ions react with magnesium/calcium ions to form a __? (11)
  • These ions __ the calcium or magnesium ions in the water? (7)

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