Hello my friend,
since atomic no. = no. of electrons
there will be 40 electrons in that atom.
if and element has 111 protons, atomic no. will be 111.
no. of neutron = 161 - 55 = 106 neutrons.
Answer:
A.
Explanation:
the term precision refers to something that is has the most quality or good condition, being precise and exact.
Answer:
yaeh
Explanation:
a)Ca(OH)
2
+CO
2
⟶CaCO
3
+H
2
O
No. of atoms:Ca−1;O−4;H−2;C−1
b)Zn+AgNO
3
⟶ZnNO
3
+Ag
No. of atoms:Zn−1;Ag−1;N−1;O−3.
The concentration of NO2 is 0.054 M and that of N2O4 is 0.003 M.
<h3>Equilibrium constant</h3>
The equilibrium constant shows the extent to which reactants are converted into products.
We have the reaction; N2O4⇌2NO2 and Kp = 4.5. Setting up the ICE table, we have;
N2O4 ⇌ 2NO2
I 0. 0550 0
C -x +x
E 0. 0550 - x x
Given that;
Kp = [NO2]^2/[N2O4]
4.5= (x)^2/0. 0550 - x
4.5(0. 0550 - x) = x^2
0.2475 - 4.5x = x^2
x^2 + 4.5x - 0.2475 = 0
x=0.054 M
The concentration of the required NO2 gas at equilibrium is 0.054 M and that of N2O4 is 0.003 M.
Learn more about equilibrium constant: brainly.com/question/17960050
Answer:
They all do. If you throw them off a building and watch them shatter.
Explanation: