9 b grade chemistry

Nitric acid formula

• H2S

• HNO2

• HNO3

• H2N2O3

Aggregate state of nitric acid

• Liquid

• solid

• gas

• plasma

density of nitric acid

• 2,5

• 3,5

• 6,5

• 1,51

Molar mass of nitric acid

• 75

• 63

• 55

• 46

The formula of ammonia

• NH3

• H2S

• PH3

• NO2

Nitrogen oxides

• N0 , H2O, P2O5

• NO2 , N2O5, NO

• NO3 , NH3, NO

• NO3 , SO2, N2O5

The proportion of nitrogen in the composition of air

• 21

• 78

• 50

• 60

Aggregate state of ammonia

• gas

• Liquid

• solid

• plasa

What is the color of nitric acid?

• red

• blue

• colorless

• yellow

Nitric acid extraction reaction

• N2+H2=NH3

• NO2+H2O+O2= HNO3

• NaOH+HNO3= NaNO3+ H2O

• NH3+H2O = NH4OH