Where is the chooses for you question
Answer:
D
Explanation:
The atomic number is the amount of protons in the nucleus of every atom in a specific substance
Hope this helps!
The element symbol in chemistry comprises atomic number and mass number.
Atomic number is written on the top of element and mass number is written at the bottom.
For eg:
If Y is an element that is having atomic number a and mass number x. Then its denotion will be:
ᵃYₓ.
So here ⁹F₁₈.₉₉
Here 18.99 will denote mass number while 9 will denote atomic number.
Answer:
C is the correct answer
Explanation:
to test for the presence of carbonate minerals in a rock
<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.
