Which statement about acids is true? acids turn red litmus paper blue. acids feel slippery and have a bitter taste. acids donate hydrogen ions to water when they dissolve. acids are ionic compounds formed when a metal atom replaces hydrogen.

The correct answer is :

Acids donate hydrogen ions to water when they dissolve.

Explanation:

Acid are those substance which releases hydronium ions in their aqueous solution.They have following properties:

a skateboard rolling across the street - apex

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j