6.16 I did the math so I know it is correct
Answer:
In the Lewis structure of P4 there are 6 bonding pairs and 4 lone pairs of electrons.
Explanation:
The structure of tetrahedral molecule of P4 is provided below.
Each phosphorus atom has 5 valence electrons out of which 3 electrons involve in bonding and the rest 2 electrons exist as a lone pair that does not involve in bonding.Hence each phosphorus atom has one lone pair.In P4 molecule there are phosphorus atoms and hence 4 lone pairs in total.
As you can see in the figure, each phosphorus atom is bonded to the other three atoms.A bond is formed when two atoms share one electron each and the pair is called bonding pair.
From the figure we can see that there are 6 bonds in total.Each bond consist of one bonding pair of electrons and hence in total there are 6 bonding pairs of electrons.
Hence in a P4 molecule there are six bonding pairs and 4 lone pairs of electrons.
Answer:
3) an applied electric current
Explanation:
An electric source is used in an electrolytic cell.
The three
states of matter are solid, liquid and gas phase. The solid has a more definite
shape and volume. The particles are locked into place. It cannot be further
compressed due to the bond that exists between the molecules. The kinetic
energy of the molecules is close to none because the molecules are so close and
so compact with each other. For liquids, it has a medium shape and volume. The
particles can move or slide past each other due to the small space available
for movement. It cannot be compressed further due to the repulsive forces that
acts between them. The kinetic energy is medium. For gases, it has no shape and
volume because the particles can move freely from one other. Their collisions
are rare due to the distance between them. The kinetic energy of the molecules
is high because there is room for movement. It can be compressed easily.
If the population of frogs decreased, an animal that eats frogs and trout will decrease because it's food source is declining. Then, since the predator population is declining, the trout population will increase. The trout will have less predators to worry about.
Hope this helps... mark as Brainliest plz