Hard and soft water

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

Clues

  • __ hard water remains __ upon boiling? (9, 4)
  • Commercial water softener a contain an __? (3, 8, 6)
  • Hard water can __ strength of bones and teeth? (8)
  • Hard water contains __ and __ ions? (9, 3, 6)
  • Hard water does not form a __ with soap easily so more soap is required which is __? (6, 9)
  • Hydrogencarbonate ions __ upon heating to product __ ions? (9, 9)
  • Temporary hard water builds up __ inside kettles and heating systems which reduces their __? (5, 10)
  • Temporary hard water contains __ ions? (17)
  • The column supplies __ or __ ions? (8, 6)
  • These carbonate ions react with magnesium/calcium ions to form a __? (11)

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