How do we confirm the presence of hydrogen gas after metals react with acids?
a. Hydrogen gas will turn limewater milky
b. Hydrogen gas will react with oxygen to create a pop sound.
c. Hydrogen gas will turn damp red litmus paper blue.
d. Hydrogen gas will turn damp blue litmus paper red
Answers
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Answer:
hydrogen gas is liberated with pop up sound
Explanation:
when metals react with acids they form salts and hydrogen gas
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Option (b) is the correct answer...
Option (b) is the correct answer...b. Hydrogen gas will react with oxygen to create a pop sound.
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