Question

1.The figure below shows magnesium burning in air. © Charles D Winters/Science Photo Library (a) Look at the figure above. How can you tell that a chemical reaction is taking place? ............................................................................................................................. ............................................................................................................................. (1) (b) Name the product from the reaction of magnesium in the figure. [Type text] 3 ............................................................................................................................. (c) The magnesium needed heating before it would react. What conclusion can you draw from this? Tick one box. The reaction is reversible The reaction has a high activation energy The reaction is exothermic Magnesium has a high melting point (1) (d) A sample of the product from the reaction in the figure above was added to water and shaken. Universal indicator was added. The universal indicator turned blue. What is the pH value of the solution? Tick one box. 1 4 7 9 (1) .............................................................................................................................

Answer 1

Answer:

ok

Explanation:

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