C3.2.1 Hard and Soft Water

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

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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