Reaction of metal with acids
Flashcard
•
Chemistry
•
10th Grade
•
Hard
Mr Law
FREE Resource
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17 questions
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1.
FLASHCARD QUESTION
Front
Metals that react quickly or strongly with water and acids are described as?
Back
Reactive
Answer explanation
Metals that react quickly or strongly with water and acids are classified as reactive. This term indicates their tendency to undergo chemical reactions readily, distinguishing them from unreactive metals.
2.
FLASHCARD QUESTION
Front
An acid reacts with a metal to produce:
Back
Salt and hydrogen gas
Answer explanation
When an acid reacts with a metal, it typically produces salt and hydrogen gas. The reaction involves the metal displacing hydrogen from the acid, resulting in these two products.
3.
FLASHCARD QUESTION
Front
What type of reaction is the following?
HCl + Zn → ZnCl2 + H2
Back
Acid and a metal
Answer explanation
The reaction between HCl and Zn produces ZnCl2 and H2, indicating that an acid (HCl) reacts with a metal (Zn). This is characteristic of an acid and a metal reaction, making it the correct choice.
4.
FLASHCARD QUESTION
Front
What observation might indicate that a metal is reacting with water?
Back
Fizzing, gas produced
Answer explanation
When a metal reacts with water, it often produces fizzing due to the release of hydrogen gas. This is a clear indication of a chemical reaction, making 'Fizzing, gas produced' the correct observation.
5.
FLASHCARD QUESTION
Front
Which salt will be produced if magnesium reacts with hydrochloric acid?
Back
Magnesium chloride
Answer explanation
When magnesium reacts with hydrochloric acid, it produces magnesium chloride (MgCl2) and hydrogen gas. The other options, such as magnesium oxide, sulfate, and sulfide, are not formed in this reaction.
6.
FLASHCARD QUESTION
Front
An acid reacts with a metal to produce:
Back
Metal salt and hydrogen gas
Answer explanation
When an acid reacts with a metal, it typically produces a metal salt and hydrogen gas. This is a common reaction in chemistry, distinguishing it from other products like carbon dioxide.
7.
FLASHCARD QUESTION
Front
Reaction of metals with dilute hydrochloric acid: zinc, copper, magnesium, iron.
Back
Gas given off with magnesium.
Answer explanation
When dilute hydrochloric acid is added to magnesium, it reacts vigorously, producing hydrogen gas. This is the correct observation, while zinc and copper do not react significantly with dilute HCl, and iron reacts but not as quickly as magnesium.
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