Answer is: the evidence that a chemical reaction occurred is formation of white precipitate (change of color).
Balanced chemical reaction: AgNO₃(aq) + NaCl(aq) → AgCl(s) + NaNO₃(aq).
Solutions of silver nitrate and sodium chloride do not have color.
From chemical reaction: n(NaCl) : n(AgCl) = 1 : 1.
n(NaCl) = n(AgCl).
m(AgCl) = m(AgCl) · M(AgCl).
Answer:
1) The correct answer is option b.
2) The correct answer is option a.
Explanation:
1)
At 300 K, the value of the 
The 
and 
is related by :
where,
= equilibrium constant at constant pressure
= equilibrium concentration constant
R = gas constant = 0.0821 L⋅atm/(K⋅mol)
T = temperature = 300 K
= change in the number of moles of gas = 1 - 2 = -1
Now put all the given values in the above relation, we get:
The of the reaction = 24.63
Given = [X] = [Y] = [Z] = 1.0 M
Value of reaction quotient = Q
![Q=\frac{[Z]}{[X][Y]}=\frac{1.0 M}{1.0M\times 1.0 M}=1](https://tex.z-dn.net/?f=Q%3D%5Cfrac%7B%5BZ%5D%7D%7B%5BX%5D%5BY%5D%7D%3D%5Cfrac%7B1.0%20M%7D%7B1.0M%5Ctimes%201.0%20M%7D%3D1)
, the equilibrium will move in forward direction that is in the right direction.
2)
At 300 K, the value of the
Given = 
Value of reaction quotient in terms of partial pressure = 
the equilibrium will move in backword direction that is in the left direction.
<span>D. Liquid particles are attracted to each other.</span>
You should read up on Proust's law, better known as the Law of Definite Proportions. This is a chemical law that defines your question more generally, on why the ratio of elements and ions are always fixed.
Basically, this compound Magnesium(II) Chloride is MgCl2 because it has the same number of protons, neutrons, and electrons all the way. This defines the properties of the compound or atom.
both resistance will have same voltage across it which is equal to 5 volt.
if resistance value is different then voltage drop across them will be different.
current in both resistance would be same.
let's say resistance is 5 ohm of each one.
total current = total voltage / total resistance
= 10 /(5+5) = 10/10 = 1 amp
now voltage across 5 Ohm resistance = current × resistance = 1× 5 = 5 volt
