1) Compounds are represented by a chemical formula. True or False? a) True b) False 2) Elements make up matter on Earth. True or False? a) True b) False 3) Which of the following correctly represents an element? a) Water - H2O b) Salt - NaCl c) Carbon monoxide - CO d) Copper - Cu 4) Which of the following correctly represents a compound? a) Salt - NaCl b) Au - Gold c) Iodine - d) H - Hydrogen 5) Which of the following is evidence of the formation of a new substance? a) Salt or sugar dissolves in hot water b) Adding food coloring to cake icing to change the color c) The formation of a precipitate d) Shredding papers 6) The word __________ means that nonmetals are easily breakable. a) brittle b) ductile c) malleable d) rough 7) ___________ are good conductors of heat and electricity. a) Metalloids b) Metals c) Nonmetals d) Silicon 8) Metals are ductile. This means that metals a) are mostly gases. b) are not used for heat and electricity. c) are easily breakable. d) are capable of being stretched into a wire. 9) Metals are able to be molded and shaped or hammered into sheets without breaking. This means metals are a) metalloids b) malleable c) brittle d) luster 10) Nonmetals do not have luster. This means that nonmetals a) are very shiny. b) are usually solids. c) are not shiny. d) are a greyish, silvery color. 11) What is the formula for density? a) A= l x w b) D= m/V c) D= l x w x h d) F = ma 12) What is the chemical symbol for calcium? a) C b) Ca c) Cl d) Co 13) _____________ are made from two or more elements. a) elements b) atomic numbers c) compounds d) properties 14) Elements are represented by a chemical ____________. a) symbol b) formula c) atomic number d) atomic mass 15) A compound is a pure substance. True or False? a) True b) False 16) An element is a pure substance. True or False? a) True b) False 17) Which of the following correctly represents a compound? a) H2SO4 b) O c) C d) Cl 18) Which of the following correctly represents a compound? a) Ag b) Au c) Br d) C2H6O 19) How many elements are in the formula NaHCO3? a) 2 b) 3 c) 4 d) 5 20) Which of the following is NOT TRUE about BOTH elements and compounds? a) They are both essential for life. b) THey are both found on Earth. c) They are both a pure substance. d) They are both made from more than one element.

Maze Game--Chemistry

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