A road tanker carrying an acid was involved in an accident and its content spilled on the road.At the side of the road iron drain covers began 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 how the specialist could carry out a simple test to see if the river water contains some acid or not. (b) the word "melting" is incorrectly used in the report. Suggest a better name that should have been used for the same purpose. (c) Explain why drain covers began fizzing as the acid ran over them.
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a)The specialist could use a blue litmus paper to test a sample of water from the river. If it turns red, then the water has acid content.
b)Melting is incorrectly used in place of corroding. Corroding is the correct term.
c) The drain covers fizz because when acid reacts with iron hydrogen gas is liberated. It is this hydrogen gas that bubbles and forms the fizz.
b)Melting is incorrectly used in place of corroding. Corroding is the correct term.
c) The drain covers fizz because when acid reacts with iron hydrogen gas is liberated. It is this hydrogen gas that bubbles and forms the fizz.
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Answer:
a)The specialist could use a blue litmus paper to test a sample of water from the river. If it turns red, then the water has acid content.
b)Melting is incorrectly used in place of corroding. Corroding is the correct term.
c) The drain covers fizz because when acid reacts with iron hydrogen gas is liberated. It is this hydrogen gas that bubbles and forms the fizz.
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