<span>KCl
1)</span><span>dissociates in water,
</span>2)<span>is an electrolyte,
4)</span><span>is a salt.</span>
Answer:
NA
Explanation:
the other three options are alkali earth metals like magnesium (they are all in group 2). Sodium is the only one that is not an alkali earth metal.
To know the total energy you must know that bond-breaking is endothermic (+) while bondbond-forming is exothermic (-). The bond energy of ethene is 602 kJ/mol. Since we break the ethene, that would be -602 kJ/mol.
For C-F: -602 + 552 = -50 kJ/mol
For C-Br: -602 + 280 = -322 kJ/mol
For C-I: -602 + 209 = -393 kJ/mol
<em>Since the most negative, hence exothermic, answer is C-I, the answer is C-I.</em>
Audible beats can be attributed to :
A. constructive interference.
Constructive interference happened when two waves meet in such a way that their crests lined up together.
The properties of the atomic orbital are actually
dependent on the quantum numbers.
size of atomic orbital: governed by the principal quantum
number (n)
shape of atomic orbital: governed by the angular momentum
quantum number (l)
orientation in space: governed by the magnetic quantum
number (ml)
Since we are asked about the shape, hence the correct answer
is:
angular momentum quantum number (l)
