Answer:
the speed of the earth's rotation, the tilt of the earth's axis and the directness of the sun
Methanoic acid has a molecular formula of HCOOH, when form an ester it's HCOO-, so the rest of the ester is -C4H9, a saturated 4 carbon chain. As shown in the attached diagram, there are 4 structural isomers, and the third isomer has 2 stereoisomers. So the answers is D:5.
The option that would best contrast the real and the model atoms is letter "D. model of an atom is not as small as an actual atom". The size of an atom is said to be no more than 0.1 to 0.5 nanometers. The models are used to proper illustrate the atom's physical attributes. That is why, it needs to be bigger in size.
Answer : False, there will be two lithium and one oxygen atoms in a unit molecular structure of lithium oxide.
Explanation:
Electronic configuration of lithium is :
![Li=1s^2s^1](https://tex.z-dn.net/?f=Li%3D1s%5E2s%5E1)
In order to attain stable electronic configuration it will loose an electron and form positively charge cation.
![Li^+=1s^22s^0](https://tex.z-dn.net/?f=Li%5E%2B%3D1s%5E22s%5E0)
The electronic configuration of oxygen is:
![O=1s^22s^22p^4](https://tex.z-dn.net/?f=O%3D1s%5E22s%5E22p%5E4)
Oxygen being second most electronegative atom requires two electrons to attain noble gas configuration stability and form negatively charge ion with 2- charge.:
![O^{2-}=1s^22s^22p^6](https://tex.z-dn.net/?f=O%5E%7B2-%7D%3D1s%5E22s%5E22p%5E6)
When two atom of lithium and oxygen comes together , one electron from each lithium atom get transferred to an oxygen atom which results in formation of lithium oxide.
![2Li^++O^{2-}\rightarrow Li_2O](https://tex.z-dn.net/?f=2Li%5E%2B%2BO%5E%7B2-%7D%5Crightarrow%20Li_2O)
Answer:
different species
Explanation:
weeds and vegetables are both plants, but they are completely different types of plants.