1) A chemical that is made of only one type of atom a) Element b) Compound c) Particle d) Mixture e) Molecule 2) Which of these is not an element? a) Hydrogen b) Oxygen c) Nitrogen d) Aluminium e) Water 3) Where can you find all of the elements? a) On the moon b) In the sea c) On the periodic table d) In the science hatch 4) What is the atomic number of Sodium? a) 2 b) 6 c) 10 d) 11 e) 23 f) 16 5) What is element number 3? a) Hydrogen b) Neon c) Lithium d) Potassium e) Sodium f) Carbon 6) When a solid turns into a liquid a) Boil b) Freeze c) Solidify d) Evaporate e) Melt f) Condense 7) When a gas turns into a liquid a) Boil b) Freeze c) Solidify d) Evaporate e) Melt f) Condense 8) Spot the element that does not belong a) Lithium b) Sodium c) Potassium d) Rubidium e) Magnesium f) Francium 9) What two chemicals are produced when sodium reacts with water? a) water and salt b) Oxygen and hydrogen c) Potassium and sodium hydroxide d) Hydrogen and sodium hydroxide e) Oxygen and sodium hydroxide f) sodium and water 10) What do you need to add to a liquid to turn it into a gas? a) Water b) Salt c) Ice d) Heat e) Sodium f) Magnesium 11) What separation method would you use to separate two liquids that have different boiling points? a) Filtration b) Decanting c) Evaporation d) Distillation e) Centrifugation 12) A particle that is made from two or more atoms bonded together a) Molecule b) Compound c) Element d) Mixture 13) A chemical that is made from two or more different elements bonded together a) Molecule b) Compound c) Element d) Mixture e) Atom 14) Which element will react in a similar way to sodium? a) Magnesium b) Iron c) Dubnium d) Potassium e) Tungsten f) Copper 15) How many sodiums are needed to balance this equation? Na + O2 => 2NaO a) 1 b) 2 c) 3 d) 4 e) 5 f) 6 16) How many elements are in CuSO4? a) 1 b) 2 c) 3 d) 4 e) 5 f) 6 17) How many atoms are in CuSO4? a) 1 b) 2 c) 3 d) 4 e) 5 f) 6 18) How many elements are in CaCO3? a) 1 b) 2 c) 3 d) 4 e) 5 f) 6 19) Complete this word equation Iron + Oxygen => _____________ a) Iron b) Hydrochloric acid c) Hydrogen d) H2O e) Iron Oxygen f) Iron Oxide 20) What 3 letters are added to the end of a chemical name to show it has oxygen in it? a) ide b) ape c) ode d) ate e) ite f) ont 21) Name this chemical => CaCO3 a) Calcium b) Cobalt Chloride c) Calcium oxide d) Copper carbon dioxide e) Copper carbonate f) Calcium carbonate

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