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

Clues

  • acids contain (8)
  • blue litmus paper turns red then white (8)
  • breaking down a compound using direct current (12)
  • brine (4, 5)
  • carbonate/ oxide/ hyrdoxide (5, 5)
  • H2SO4 (9, 4)
  • helps kill bacteria (12, 4)
  • ion (7, 4)
  • soulble base (6)
  • sulphur dioxide (5, 8)

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