a road tanker carrying an acid was involved in an accident and its contents spilled on the road. at the side of the road iron drain cover bean melting and fizzing as the acid ran over them. A specialist was called to see if the acid actually leaked into the nearby river
a)explain why specialist could carry out sample test to see of the river water conains some acid or not
b)suggest a better report name for the word "melting"
c)explain why the drain covers began fizzing as the acid ran over them
Answers
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A) acid pollutes the water so test was conducted. B)corrosion c)when a acid and a metal react metal corrodes
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Answer:
(a) By dipping a strip of blue litmus paper in to the sample of river water.
If the colour changes to red this means that some acid has gone in to the river.
(b) Corrosion.
(c) Iron reacts with acid to evolve hydrogen gas.
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