Exploring Salts: Properties and Uses
This worksheet covers the properties, formation, and common uses of salts in everyday life, suitable for Grade 7 science students.
Includes
Standards
Topics
Exploring Salts: Properties and Uses
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. What is a salt typically formed from?
Two metals
An acid and a base
Two non-metals
A metal and a noble gas
2. Which of the following is a common property of most salts?
Low melting point
Good electrical conductors when solid
Soluble in water
Always acidic
3. The chemical name for common table salt is .
4. Salts are formed when the ions from an acid combine with the ions from a base.
5. All salts are safe to eat.
True
False
6. Salts always have a neutral pH of 7.
True
False
7. Describe one common use of salt in our daily lives, other than for seasoning food.
8. What is the general term for the reaction between an acid and a base that produces a salt and water?
Use the words below to complete the sentences.
9. Salts are typically compounds, meaning they are formed by the electrostatic attraction between oppositely charged ions.
10. In a salt, the positive ion is called a , and the negative ion is called an .