Question

I need help with science

which of these is a property of a bases?
A They produce hydrogen gas when reacted with metals.
B They turn litmus paper blue.
C They feel sticky.
d They Taste sour.
An unknown solution has a pH of 7. how would you classify this solution?
A acidic
B basic
C neutral
D There is not enough information to answer this question
Which of these is an acid?
A Vinegar
B naoh
C ammonia
D water
A high concentration of hydrogen ions means a solution is what?
A very acidic
B very basic
C neutral
D neither acidic or basic
if litmus paper is dipped in acidic solution and then a basic one, what will happen?
A the paper will turn from blue to red
B the paper will turn from red to clear
C the paper will turn from blue to clear
D the solution will turn from red to blue

Answer 1

1: B
2: B
3: A
4: A
5: D

Hope this helps!

Answer 2

1. B 2. C 3. A 4. A 5. D

Step-by-step explanation:

1. B

2. C More than 7 is basic Less than 7 is acid

3. A Vinegar acid is a water solution acetic acid

4. A

5. D