Hi!
The best possible name for this molecule would be: 4 - ethyl - 1 - heptene or 4 - ethylhept - 1 - ene
We always name the molecule with respect to the longest chain (in a branched molecule), taking both atoms of carbon participating in the double bond into account too. In our case, this gives us a 7 Carbon chain - hept
ene - is the suffix that is indicative of the molecule being an alekene.
<em>So we know it is a branched heptene molecule</em>
We add the number where the double bond occurs either before ene, or before heptene as a rule.
<em>Note: We always start with the end of the chain from where the double bond is the closest, and number the carbons accordingly.</em>
The title and position of the branch always comes at the start. In our case the branch is a two carbon chain, and an alkane, so it would be an ethyl branch. This branch occurs at carbon number 4
Hence, the correct names would be:
<em>4 - ethyl - 1 - heptene</em> or <em>4 - ethylhept - 1 - ene</em>
Hope this helps!
Hello there!
The correct answer is B
Remember that acceleration is the change in velocity divided by the change in time.
So, what we need to do here is take +25 divide it by 5.0, which equals to 5
So yeah, that's how we got the acceleration :)
I hope this helps!
Good luck with your Science studies!
Answer:
- <u>Because the atoms of the elements only emit some specific frequencies of light.</u>
Explanation:
The spectra lines are the result of the emission of different frequencies of light (electromagnetic radiation) from the atoms of an element when some electrons decay from an upper (excited) energy level to a lower energy level.
The fact that certain regions do not show lines means that the spectrum is not continuos but discrete. This is, only some specific frequencies of light are emitted.
The frequency of the light is related with the energy per the Einstein-Planck´s equation:
Where h is Planck's constant and f is the frequency of the electromagnetic wave (light).
Thus, it is concluded that only photons with certain specific energies are emitted.
This is what is meant when you say that the light has dual behavior: as wave and as particle: the light is emitted in packages named quanta.
The emission spectrum is a demostration of the discrete (quantized) nature of the light.
Answer:
Bond energy system will decrease.
Explanation:
When ice cube at -196 °C is dropped into ice-water at 0 °C then the heat energy transfers from ice-water to ice cube (since, heat energy always transfers from a hot body to cold body, according to the second law of thermodynamics). This transfer of heat energy into the ice cube increases the thermal energy of the ice cube however, the increase in thermal energy, weakens the bonds between atoms in the ice cube and changes the physical state of the ice cube thereby, results in the decrease in bond energy system.
Water boils at 100 degrees C and 212 degrees F
F= 212 degrees
C= 100 degrees