<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:
NaNO₃
Explanation:
A precipitate is a compound or a salt formed from a precipitation reaction and does not dissolve in water and therefore will exist in solid state.
From the choices given precipitation reaction will occur between;
- Fe(NO₃)₃(aq) + 3NaOH(aq) → Fe(OH)₃(s) + 3NaNO₃(aq)
- Cu(NO₃)₂(aq) + 2NaOH(aq) → Cu(OH)₂(s) + 2NaNO₃(aq)
- FeSO₄(aq) + 2NaOH(aq) → Fe(OH)₂(s) + Na₂SO₄(aq)
Fe(OH)₃, Cu(OH)₂, and Fe(OH)₂ are precipitates.
From the rules of solubility, hydroxides are insoluble except Ca(OH)₂ which is slightly soluble and hydroxides of ammonium and alkali metals.
<span>Open the bleeder valve during filling</span>
Answer:
- a.
<h3>
<em><u>b</u></em></h3>
<em><u>c</u></em>
<em><u>d</u></em>
<em><u>a</u></em>
<em><u>d</u></em>
<em><u>i </u></em><em><u>think</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>is </u></em><em><u>it</u></em><em><u> </u></em><em><u>or </u></em><em><u>east</u></em><em><u> </u></em><em><u>be </u></em><em><u>responsible</u></em>
<em><u>make </u></em><em><u>me </u></em><em><u>the </u></em><em><u>brainyst </u></em><em><u>please</u></em>
Answer:
The substance which responds to the change in the concentration of the hydronium ions in solution by changing its color is known as an indicator.
