Hard and soft water

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

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)
  • 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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