1) Particle found in an atoms nucleus are.... a) electrons + protons b) electrons + neutrons c) protons and neutrons 2) Electrons are... a) negative b) positive c) neutral 3) An atoms atomic number tells you the number of.... a) protons b) neutrons c) protons and neutrons d) electrons 4) Methane gas (CH4) is an.... a) element b) compound c) mixture 5) The electron coniguration for carbon is.... a) 2,6 b) 2,4 c) 6,2 d) 4,2 6) An atoms mass number tell us the number of .............. a) electrons b) protons and electrons c) protons and neutrons d) electrons and neutrons 7) Covalent compounds are formed between non metal atoms when they..... a) gain or loose electrons b) form ions c) share electrons 8) What type of structure is this.... a) Giant covalent b) Simple covalent c) giant ionic d) metallic 9) Giant covalent strucutes have..... a) low melting points b) high melting points 10) What type of bonding does water have? a) giant covalent b) simple covalent c) ionic d) metallic 11) What is a property of simple covalent compounds. a) High melting point b) Low melting point 12) An ionic bond is ... a) when atoms share electrons. b) the attraction between oppositely charged ions. c) a week force. 13) Ionic compounds can conduct electricity when... a) solid b) molten or in solution c) hot 14) An example of an ionic compound is ... a) water b) diamond c) iron d) sodium chloride 15) How many neutrons does sodium have? a) 10 b) 11 c) 12 d) 13 e) 14 16) What is the relative atomic mass of CO2 a) 40 b) 41 c) 42 d) 43 e) 44 f) 45 17) An exothermic reaction.... a) takes in heat b) gives out heat 18) The Haber process is an example of a.... a) neutralisation reaction. b) reversible reaction. c) reduction reaction 19) Ammonia is used as.... a) a food additive b) fertiliser c) a polymer 20) The chemicals used to make ammonia are..... a) Hydrogen and oxygen b) Hydrogen and Nitrogen c) Nitrogen and oxygen d) Hydrogen and Nickel 21) Increasing a temperature increases the rate of a reaction because.... a) there are more particles b) there are less particles c) particles collide more often d) particles collide less often 22) A catalyst increases the rate of a reaction by.... a) increasing the number of collisions b) increasing the activation energy c) decreasing the activation energy 23) Which one will increase the rate of a reaction.... a) high surface area b) low temperature c) low concentration d) low pressure 24) The pH of hydrochloric acid is.... a) 1 b) 4 c) 7 d) 8 e) 14 25) The pH of sodium hydroxide is..... a) 1 b) 4 c) 7 d) 8 e) 10 f) 14 26) In solution acids form... a) OH- ions b) H+ ions 27) When acids and alkalis react what is always formed? a) Hydrogen and water b) Salt and hydrogen c) Salt and water d) Salt and Carbon Dioxide 28) Hydrochloric acid and sodium hydroxide will form the salt.... a) Potassium chloride b) Sodium nitrate c) Sodium Chloride d) Potassium Sulphate 29) Nanoparticles are..... a) very large. b) invisible. c) very small. d) found in atoms. 30) Sulphuric acid and sodium hydroxide make the salt a) Potassium Nitrate b) Sodium Chloride c) Sodium Nitrate d) Sodium sulphate

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