Answer:
1. Ionic solids dissolve in water.
2. Ionic solid is a better conductor compared to covalent solid.
Explanation:
1. Ionic solids dissolves in water because the water molecules hydrate the ions.When ionic compounds dissolve in water, they break apart into the ions that make them up through a process called dissociation.
Whereas covalent solids don't dissolve in water, instead making a separate layer on the water's surface.
For example table salt that is NaCl is an ionic solid.When we add the salt in water it completely dissolves in water and disappears on the other hand oil is a covalent solid, when we add it in water it does not dissolve and forms a layer on water surface.
2.Ionic solids conducts electricity when it dissolves in water. Because in aqueous form there are ions which conducts electricity.
But covalent solids does not conduct in any form neither in pure form nor in aqueous form because they are bond with shared electrons having no ions which conducts electricity.
Here is how i made slime when i had a buisiness.
Add glue to a bowl.
13 pumps of foaming hand soap
a table spoon of cornstarch
coloring
borax
add everything but borax and stir! then slowly add borax and knead until it is at your desired texture :D
I took the test and got this question right! Here is the work.
molality = moles solute / kg solvent
<span>moles AgClO4 = 75.2 g / 207.389 g/mol </span>
<span>= 0.3626 mol </span>
<span>molality = 0.6326 mol / 0.885 kg </span>
<span>= 0.410 m
The asnwer is 0.41.</span>
One of the differences I can think of is that hydrogen is no longer listed as a group I element.
According to the mendeleev tables that I looked up, hydrogen is catorgrized as a group I element, along with Lithium, sodium, Potassium etc. However, nowadays, hydrogen does not belong to any groups in the periodic table. This is because there are arguments about whether hydrogen belongs to group I. Group I elements are all alkali metals, while hydrogen is not. However, some people says that hydrogen only have one outer shell electron so it should be in group I. Some people even say hydrogen should belong to group VII because it only needs one more electron in order to achieve the duplet of electrons.
Therefore as you may notice, hydrogen in modern periodic tables are put in the center of the periodic table on the top.