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

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)
  • These are negatively charged and found on the energy levels of the atom (8)
  • 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)

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