3.When metals react with acids, if there is a reaction then _______/effervescence is seen which is a sign a gas is being given off
Question
3.When metals react with acids, if there is a reaction then _______/effervescence is seen which is a sign a gas is being given off
Solution
When metals react with acids, if there is a reaction then bubbling or effervescence is seen which is a sign a gas is being given off. This gas is usually hydrogen. The effervescence is caused by the release of this gas. The reaction can be generalized as:
Metal + Acid → Salt + Hydrogen gas
The effervescence or bubbling is a visual indicator of this reaction taking place.
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