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Chemistry
Unit 1 - Part 2
Question | Answer |
---|---|
What are the 7 diatomic molecules? | Hydrogen Oxygen Nitrogen Fluorine Chlorine Bromine Iodine |
What is the state symbol for a liquid? | (l) |
What is the state symbol for a solid? | (s) |
What is the state symbol for a gas? | (g) |
What is the state symbol for a solution? | (aq) |
On the pH scale what is 1? | A strong acid |
On the pH scale what is 6? | A weak acid |
On the pH scale what is 7? | Neutral |
On the pH scale what is 8? | A weak alkali |
On the pH scale what is 14? | A strong alkali |
What is the lowest number on the pH scale? | 1 |
What is the highest number on the pH scale? | 14 |
What is the pH of an acidic solution? | <7 |
What is the pH of a neutral solution? | 7 |
What is the pH of an alkaline solution? | >7 |
Explain the term 'Concentrated solution' | A large amount of a solute dissolved in a small amount of solvent. |
Explain the term 'Dilute solution' | A small amount of a solute dissolved in a large amount of solvent. |
Give an example of a weak acid | Vinegar |
Give an example of a strong acid | Hydrochloric Acid |
Give an example of a weak alkali | Ammonia |
Give an example of strong alkali | Sodium Hydroxide |