Answer:
5 atoms are in each molecule of calcium carbonate
A double displacement reaction is a type of reaction in which two reactants exchange ions to form two new compounds. Many double displacement reactions occur between ionic compounds that are dissolved in water. A double replacement reaction is represented by the general equation.
The function of Y would be to keep oxygen-rich blood and oxygen-poor blood separate. The last option is the correct one.
<h3>Function of the Septum</h3>
Y is the septum
The septum is a structure of the heart that separates the left atrium from the right atrium as well as the two ventricles.
Thus, the structure prevents oxygenated blood from mixing with deoxygenated blood.
More on the heart's septa can be found here: brainly.com/question/17295714
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Odorants such as Citronellal, Linalool, Nerolidol
Answer
is: <span>the
percent ionizationof formic acid is 1,82%.
Chemical reaction: HCOOH(aq) </span>⇄ H⁺(aq)
+ HCOO⁻(aq).<span>
pKa(</span>HCOOH) = 3,77.
Ka(HCOOH) = 1,7·10⁻⁴.
c(HCOOH) = 0,5 M.
<span>
[H</span>⁺]
= [HCOO⁻] = x; equilibrium
concentration.<span>
[HA] = 0,1 M - x.
Ka = [H</span>⁺] · [HCOO⁻] / [HCOOH].<span>
0,00017 = x² / 0,5 M - x.
Solve quadratic equation: x = 0,0091 M.
α = 0,0091 M ÷ 0,5 M · 100% = 1,82%.</span>