Answer:
the answer is mixtures.
Explanation:
mixtures can be separated physically. elements like the ones on the periodic table cannot be further broken down. compounds are bonds between two or more elements and can only be broken down chemically.
A pure substance, any compound or element, can't be separated into different atoms by physical methods. A chemical reaction must occur to separate a compound into its different atoms/elements.
Answer:
Find g
Write your answer in simplest radical form
Answer:
The freezing point is -3.72 degrees Celsius
Explanation:
In this question, by assuming the complete dissociation of the salt, we want to calculate the freezing point of an aqueous 1 M NaCl solution .
We proceed as follows;
Firstly, we write the dissociation equation;
NaCl ——> Na+ + Cl-
So the number of ions present in the dissociation is 2. This means that the Vant Hogg factor also called I = 2
Mathematically;
ΔTf = Kf*m*i
m represents the molality which is given as 1
So by substituting the values, we have;
ΔTf = 1.86 * 1 * 2 = 3.72 degrees Celcius
The freezing point however is 0 - ΔTf = 0 - 3.72 = -3.72 degrees Celcius
Answer:
How is metallic bonding different from ionic bonding? ... In an ionic bond the valence electrons are transferred from the metal only to the neighboring nonmetal, but in metallic bonding the valence electrons of each atom/ion are free to move or float around within the entire metal solid.