N5 Acids
Flashcard
•
Chemistry
•
9th Grade
•
Practice Problem
•
Easy
Alison Urquhart
Used 1+ times
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20 questions
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1.
FLASHCARD QUESTION
Front
What does the pH scale indicate?
Back
The hydrogen ion concentration of a solution.
2.
FLASHCARD QUESTION
Front
What are the concentrations of ions in a neutral solution?
Back
A neutral solution has equal concentrations of H⁺ (aq) and OHˉ (aq) ions.
3.
FLASHCARD QUESTION
Front
What does the ⇌ symbol in a chemical equation indicate?
Back
Reaction is reversible (occurs in both directions).
4.
FLASHCARD QUESTION
Front
What is the relative concentration of hydroxide and hydrogen ions in alkaline solutions?
Back
Alkaline solutions have a higher concentration of OHˉ (aq) ions than H⁺ (aq) ions and have a pH above 7.
5.
FLASHCARD QUESTION
Front
What is the relative concentration of ions in acidic solutions?
Back
Acidic solutions have a higher concentration of H⁺ (aq) ions than OHˉ (aq) and have a pH below 7.
6.
FLASHCARD QUESTION
Front
What happens when an acidic solution is diluted with water?
Back
Decreases the concentration of H⁺ (aq) and the pH increases towards 7.
7.
FLASHCARD QUESTION
Front
What happens when an alkaline solution is diluted with water?
Back
Decreases the concentration of OHˉ (aq) and the pH decreases towards 7.
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