Unit 8 Acids and Bases Test Retake/Make Up

Front

What is a base?

Back

A base is a substance that tastes bitter, feels slippery, and produces OH- ions when dissolved in water.

Front

What happens to blue litmus paper when placed in an acid?

Back

Blue litmus paper turns red when placed in an acid.

Front

What happens to red litmus paper when placed in a base?

Back

Red litmus paper turns blue when placed in a base.

Front

What is the pH range of acids?

Back

The pH range of acids is from 0 to 6.

Front

What is the pH range of bases?

Back

The pH range of bases is from 8 to 14.

Front

What is neutral pH?

Back

A neutral pH is 7, which is neither acidic nor basic.

Front

What is the effect of acids on blue litmus paper?

Back

Acids turn blue litmus paper red.

Front

What is the effect of bases on red litmus paper?

Back

Bases turn red litmus paper blue.

Front

What is the strongest acid among the following: pH 1, pH 3, pH 5?

Back

pH 1 is the strongest acid.

Front

What is the weakest acid among the following: pH 1, pH 3, pH 5?

Back

pH 5 is the weakest acid.