Answer:
Covalent molecular structures are compounds containing molecules with covalent bonds. Covalent network structures are compounds composed of a network structure with covalent bonds between atoms throughout the material.
Explanation:
Answer:
D
Explanation:
salt molecules evenly distributed after shaking
when the top of the pencil moves in one direction, the bottom end on the ground will move in another, but due to the frictional force it will move by a lesser amount, and the center of mass of the pencil will be accelerated in the horizontal direction due to the force of friction
Answer:


Explanation:
In this reactor, oleic and linoleic acid react with hydrogen to form stearic acid. This reactions can be represented by:
Oleic: 
Linoleic: 
Having this reactions in mind, the first thing is to determine the moles of hydrogen required:
<u>Base of caculation: 1 mol of sunflower oil</u>
For oleic acid: 

For linoleic acid: 



Applying the excess:

Nitrogen: 

<u>After the reactions</u>:

and the nitrogen is inert.
Purge stream:


