The answer is The molecule contains oxygen atoms. Because the two O means oxygen in the periodic table
<u>Answer:</u> The correct answer is 1.
<u>Explanation:</u>
When alkanes are reacted with chlorine gas at high temperatures or in the presence of light, it leads to the formation of chloro alkanes.
The process is known as chlorination.
Let us take the simplest alkane which is methane having chemical formula 
The chemical equation for the chlorination of methane follows:
![CH_4+Cl_2\xrightarrow[]{h\nu}CH_3Cl+HCl](https://tex.z-dn.net/?f=CH_4%2BCl_2%5Cxrightarrow%5B%5D%7Bh%5Cnu%7DCH_3Cl%2BHCl)
The product formed is chloromethane.
Hence, the correct answer is 1.
The electron configuration describes the electrons of Magnesium
Explanation:
The law of conservation of mass states that mass is conserved which also means that it cannot be created or destroyed within the isolated system.
We can add the mass of the reactant and can be equal to the mass of the product. But in some cases, it will not work like:
If reactants are not in the mole ratio, there will be a limiting reagent.
If a gas is one of reactants or products.
Radioactive decay and nuclear reactions(fission or fusion).