is going to be electrons
denitrifying bacteria
bacteria that break apart cellulose
nitrogen-fixing bacteria
Answer: nitrogen fixing bacteria
Explanation:
Most plants and animals are dependent on nitrogen fixing bacteria for their nitrogen requirements. As they are incapable of absorbing the atmospheric nitrogen directly. The soil bacteria traps the atmospheric nitrogen convert it into forms like ammonia, nitrates and nitrites which are readily absorbed by the plants and some soil borne animals.
(2) more effective particle collisions occur
(3) the required activation energy increases
(4) the concentration of the reactants increases
insoluble because most Na+1 compounds are insoluble in water
soluble because all S−2 compounds are soluble in water
insoluble because there are no water soluble S−2 compounds
Answer: Option (a) is the correct answer.
Explanation:
Atomic number of sodium is 11 and its electronic distribution is 2, 8, 1. Whereas atomic number of sulfur is 16 and its electronic distribution is 2, 8, 6.
So, when both sodium and sulfur chemically combine together then it results in the formation of an ionic bond due to transfer of an electron from sodium to sulfur atom.
Sodium changes into by losing an electron and sulfur changes into by gain of two electrons from two sodium atoms.
As it is known that water is a polar solvent and all ionic substances will dissolve in water.
Therefore, we can conclude that when the compound, , is mixed with water, the is soluble because all compounds are soluble in water.
When the compound, Na2S, is mixed with water, the Na2S is soluble because all Na+1 compounds are soluble in water. The rest of the choices do not answer the question above.
1 point
The differential relationship has been .
The gas has been termed to be the ideal gas. For an ideal gas at a constant temperature, the relationship of the change in pressure and volume can be given as constant. The relationship has been given with the application of Boyle's law.
The product of the pressure and volume has been a constant quantity for a reaction.
Pressure Volume = Constant
PV = C
V =
Differentiating the equation:
The differential relationship has been .
For more information about pressure at a constant temperature, refer to the link:
Answer:
A differential equation that could describe the relationship of the rate of change of the volume of gas with respect to the pressure is;
V' = .
Explanation:
Boyle's law states that at constant temperature, the pressure of a given mass of gas is inversely proportional to its volume.
That is;
P₁×V₁ = P₂×V₂ or
P×V = Constant, C
That is V =
Therefore, the rate of change of volume of a gas is given as
which gives
That is the rate of change of the volume of gas with respect to the pressure is proportional to the reciprocal of the square of the pressure.
.
V' = .