C3.2.1 Hard and Soft Water

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

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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