C1

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

Clues

  • Crude oil is a mixture of... (12)
  • Name the process of adding substances to metals to improve their properties (8)
  • Splitting up long chain hydrocarbons is called ... (8)
  • The ability to make more bonds makes something... (11)
  • What is CaCO3 (9)
  • What is the large number called on the periodictable of elements (4, 6)
  • What is the number of protons called (6, 6)
  • what is the process of joining small alkene molecules (14)
  • When water reacts with calcium oxide, what is formed (7, 9)
  • Wht happens when CaCO3 is heated (7, 13)

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