1) What pH level would vinegar have? a) pH 1-5 b) pH 6-10 c) pH 11-13 2) What do acids taste like? a) Bitter b) Sweet c) Salty d) Sour 3) What is an example of a chemical Reaction?  a) Ice melting b) Boiling tea c) Iron oxidising d) Sublimation of dry ice into carbon dioxide vapor 4) What does a Metal produce when mixed with an acid? a) Metal salt b) Metal salt + Hydrogen gas c) Metal salt + hydroxide gas d) Hydrogen gas 5) Complete the word equation: Magnesium + hydrochloric acid a) —> Magnesium chlorine + Hydrogen gas b) —> Magnesium chloride + Hydrogen c) —> Magnesium hydrogen + Chloride gas d) —> Magnesium chloride + hydrogen gas 6) What is not example of a chemical change a) Combustion b) Boiling c) Rusting d) Change of colour 7) Which ion is released when acids are dissolved in water? a) H+ b) H- c) OH- d) O+ 8) What is another word for an Alkali a) Base b) Acid c) Aluminum d) Oxygen 9) What is 3 things that is produced when metal carbonate gets dissolved by acid? a) Salt, Water and Carbon b) Salt, bust, Co2 c) Salt, water and Co2 d) MAte JusT dRoP THe BeaT EMemEMEMEWmeMmMmmmmmmmm 10) What ion does an Alkali produce when put into aquatic solutions a) W+ b) O+ c) OH+ d) OH-

Acids & Bases

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