Acid and alkali solution

Acid and alkali solution

from the formula of acid, we see that one element is common to them all. What is the element?

The importance of hydrogen ions

• All of acids dissolve in water to produce hydrogen ion, H+

• All of alkalis dissolve in water to produce hydroxide ion, OH-

• in water, the concentration of H+ and OH- are equal

• An indicator, like litmus, is affected by the presence of H+ or OH- ions

LItmus paper

• The hydrogen ions in acid solution make litmus go RED

• The hydroxide ions in alkali solution make litmus go BLUE

Multiple Select

Which ions are present in:

Nitric acid solution

• hydogen ion

• H+

• hydroxide ion

• OH-

Metal oxide and non metal oxide

• Non metal generally form acidic oxides thst dissolve in water to form acidic solution

• Metals form oxides that are solids. These oxides give alkaline solution (basic oxide)

The sulfuric acid clouds of venus are the product of great volcanic activity

SO3 + H2O => H2SO4

Multiple Select

These are non metal oxides

• CO2

• NO2

• CaO

• K2O

Multiple Select

These are metal oxides

• MgO

• SO2

• Na2O

• CO2

Multiple Choice

the atmosphere of venus is covered by....

• sulfuric acid

• nitric acid

• phosphoric acid

• citric acid