Answer:
Models 1 and 2 would be in the same group.
Explanation:
They have the same amount of valence electrons. Valence electrons are electrons in the outermost electron cloud. This means they have the same properties, therefore are in the same Group on the periodic table.
Answer: 0.22 M
Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

moles of 

Thus moles of
= 0.011
According to stoichiometry:
2 moles of
require 1 mole of 
Thus 0.011 moles of
require=
moles of 
Thus Molarity of 
Therefore, the molarity of
in the solution is 0.22 M
In the first law of thermodynamics, it states when heat is converted into energy, where as the total energy in the room could transform into another but can never be created or destroyed. If you release 258J of energy in the room, 258J would also be removed from the food according to the isolating system.
Your answer would be 258J.
Answer:
London forces only
Explanation:
Dimethyl ether is a nonpolar organic compound. Remember that for nonpolar organic substances, London forces are the primary intermolecular forces present.
Since dimethyl ether is a nonpolar organic compound, then it has London forces as its major intermolecular force. Intermolecular forces hold molecules of a substance together in a given state of matter.