Which of these is a property of bases?

Question

Responses

They turn litmus paper blue.

They turn litmus paper blue.

They taste sour.

They taste sour.

They produce hydrogen gas when reacted with metals.

They produce hydrogen gas when reacted with metals.

They feel sticky.

Answer 1

They turn litmus paper blue.

Answer 2

An unknown solution has a pH of 8. How would you classify this solution?

Responses

There is not enough information to answer the question.

There is not enough information to answer the question.

basic

basic

acidic

acidic

neutral

Answer 3

basic

Answer 4

Which of these is a base?

Responses

vinegar
vinegar

HCl
uppercase H C lowercase l

HNO3
uppercase H N O subscript 3

ammonia

Answer 5

ammonia

Answer 6

A high concentration of hydrogen ions means a solution is what?

Responses

neutral

neutral

very acidic

very acidic

very basic

very basic

neither acidic or basic

Answer 7

very acidic

Answer 8

What solution turns litmus paper blue?

Responses

neutral

neutral

none

none

basic

basic

acidic

acidic

Answer 9

basic