C3.2.1 Hard and Soft Water

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

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)
  • 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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