<span>Negligible
or no change. In the chemistry of nitrogen bacteria convert nitrogen
from the AIR, and hydrogen from cell into cell bound ammonia
N2 + 3 H2 -> 2 NH3
But where does that H2 come from? From metabolic reactions in the cell
that produce CO2 and H2O. The partial pressure from the gas CO2
molecule pretty much replaces the partial pressure of the N2, and any
real pressure difference would be made up of respiration of the H20 from
the cell into the air.
</span>
Answer:it reacts chemically to produce heat and gas with rapid expansion of matter. It is a rapid chemical reaction
Explanation:
Answer:
H₂O + CO₂ → H₂CO₃
Option D is correct.
Law of conservation of mass:
According to this law, mass can neither be created nor destroyed in a chemical equation.
This law was given by French chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
Now we will apply this law to given chemical equations:
A) H₂ + O₂ → H₂O
There are two H and two O atoms present on left side while on right side only one O and two H atoms are present so mass in not conserved. This option is incorrect.
B) Mg + HCl → H₂ + MgCl₂
In this equation one Mg, one H and one Cl atoms are present on left side of equation while on right side two H, one Mg and two chlorine atoms are present. This equation also not follow the law of conservation of mass.
C) KClO₃ → KCl + O₂
There are one K, one Cl and three O atoms are present on left side of equation while on right side one K one Cl and two oxygen atoms are present. This equation also not following the law of conservation of mass.
D) H₂O + CO₂ → H₂CO₃
There are two hydrogen, one carbon and three oxygen atoms are present on both side of equation thus, mass remain conserved. This option is correct.
We are given withe the data that blood buffered to pH of 7.4. This means the pH of blood will remain close to 7.4 when A. <span>moderate amounts of acid or base are added. When buffers are added,no significant changes in the pH occurs afterwards. </span>
Answer:
the highest is "A" and the lower is "C"
