Everyday acids and alkalis Flashcards
1
Q
What does the word acid mean?
A
- ‘sour tasting’
2
Q
What does the word alkali mean?
A
- a chemical substance that is the opposite of an acid
3
Q
What does the word neutral mean?
A
- one that is neither an acid or an alkali
4
Q
What is blue litmus paper used to test for?
A
acid
5
Q
What is red litmus paper used to test for?
A
alkali
6
Q
What are two acidic substances?
A
- cola
- lemon juice
- vinegar
- tomato soup
7
Q
What are two alkaline substances?
A
- toothpaste
- baking soda
- indigestion remedy
8
Q
What are two neutral substances?
A
- salt
- bottled water
9
Q
What would be the difference in how you would test vinegar and soap with litmus paper?
A
- You would have to dampen the litmus paper for the soap because it is a solid but for vinegar you just dip the litmus paper into the vinegar
10
Q
What are the limitations with testing with litmus paper?
A
- you can’t know the pH
- there are not completely accurate
