Answer:
If a solid line represents a covalent bond and a dotted line represents intermolecular attraction, which of the choices shows a hydrogen bond?
-N-------H-O-
-O------H-C-
-C-----H-F-
H-H
Of the options shown those that form hydrogen bonds are the following:
-N-------H-O-
-O------H-C-
Since they occur from the attraction in a hydrogen atom and an oxygen or nitrogen atom with a negative charge.
Explanation:
The hydrogen bridge or hydrogen bond force is the attractive electrostatic force between an electronegative atom and a hydrogen atom covalently bonded to another electronegative atom. It results from the formation of a charge-dipole force with a hydrogen atom attached to a nitrogen, oxygen or fluorine atom.
The hydrogen bond strength is located somewhere between a covalent bond and a Van der Waals force (dispersion force). This type of bonding occurs both in inorganic molecules such as water, and in organic molecules such as DNA.
If you use rate laws then your answer will be more supported. Laws can not change, so if you use rate laws then the student will get a more accurate answer then if they don’t use rate laws.
Answer:
They are already matched for you. It goes
1.
2.
3.
in the order of the questions.
Titanium is ductile and has high resistance for heat despite its strength.
Titanium (Ti), is a Group 4b chemical transition element, it has a silvery gray appearance. Its characteristics are as follows
- known as the strongest metal with high rigidity
- low-corrosion resistance
- low density
- heat resistance.
Because of these features, Titanium is widely used in building aircraft, missiles, and ships and also in the production of prosthetics.
