Crosswords Puzzle

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  1. when two or more reactants combine to form a single product is called __reactioncombination
  2. reaction in which heat is released is called __ reactionothermic
  3. a) When single reactant breaks down into simpler product is called __ reactiondecomposition
  4. b) chemical formula of lead nitratepb(no3)2
  5. Muscular organ of human bodyheart
  6. largest veinvenacava
  7. full form of ATPadinosinetriphophate
  8. largest arteryaorta
  9. a) Line parallel to principle axis passes throughfocus
  10. b) Diameter of spherical mirror is calledaperture
  11. Capital ‘R’ stands for __ of curvature radius
  12. If object is placed at focus the image will form at infinity
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