Chemistry

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

Clues

  • Are positve ions reduced or oxidised? (7)
  • How do you test for hydrogen? (7, 3)
  • What is an example of a metal less reactive than hydrogen? (6)
  • What is formed if the metal ions are more reactive than hydrogen? (8, 4)
  • What is formed when there are no halogen elements? (6)
  • What is the positive electrode? (5)
  • What should the electrodes be so they don't react with the electrolytes? (5)
  • What turns blue litmus paper white? (8)
  • Which electrode do positive ions go to? (7)

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