Answer:
<h2>Solution:</h2><h3>A solution is a homogeneous mixture of two or more substances. They are stable in nature.</h3>
<h2>Suspension:</h2><h3>These are a heterogeneous mixture. They are unstable in nature.</h3>
Answer:
The answer to your question is 0.036 M
Explanation:
Data
Molarity = ?
mass = 4.0 grams KOH
Volume = 2 L
Molecular mass KOH = 39 + 16 + 1 = 56 g
Formula
Process
1.- Calculate the moles of KOH using proportions
56 g of KOH ---------------- 1 mol
4 g of KOH ---------------- x
x = (4 x 1) / 56
x = 0.071 moles
2.- Substitute the values in the formula to find Molarity
3.- Simplification and result
Molarity = 0.036 M
Answer:
The element A is S (sulfur)
Explanation:
The elements for the 3erd period in the periodic table are Na, Mg, Al, Si, P, S, Cl and Ar.
The one that has 6 e⁻ in its valence shell is the S, because it is missing 2 e⁻ to reach the octet rule. 2 e⁻ to has the most stable noble gas conformation.
The IE of S = 3360 kJ/mol
It is a little lower than Cl because the electron is so far from the nucleus, that's why we have to apply a very low ionization energy to rip the electron off.
I believe that the answers are 3 and 4