Chemistry

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

Clues

  • Carbon dioxide, methane and water vapour are examples of what? (10, 5)
  • Crude oil is a mixtue of what? (12)
  • I am a gas. I am a product of incomplete combustion, I am colourless, odourless, toxic and can reduce the oxygen carrying ability of red blood cells. What am I? (6, 8)
  • If water is added to calcium oxide, what is formed? (7, 9)
  • Marble, chalk and limestone are natural forms of what? (7, 9)
  • Name the process that uses electrical energy to decompose compounds (12)
  • What gas did the earth's early atmosphere mainly contain? (6, 7)
  • What gas dissolves in rainwater to form acid rain? (6, 7)
  • What process released oxygen, forming our atmosphere today? (14)
  • What term is used to describe a process that does not add carbon to the atmosphere because amount released is equal to amount removed? (6, 7)

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