The answer to the question is b
<u>Answer:</u>
<em>The substance is NaOH</em>
<em />
<u>Explanation:</u>
To find the number of atoms of each element we multiply coefficient and the subscript
For example contains
5 × 1 = 5,Ca atoms and
5 × 2 = 10, Cl atoms
Sodium hydroxide is NaOH which contains
1, Na atom and
1, O atom and
1, H atom
Hence the ratio is 1 : 1 : 1
The average mass of all the isoptopes of an element :)
Answer:
c
Explanation:
Im not 100% sure but i will check in after the test but im pretty sure thats right.
Answer:
C₄H₄N₂
Explanation:
Given that:
M+ = 80.
It implies that the number of nitrogen present in the molecule must also be even according to the Nitrogen rule.
So from the Formula CHN, the nitrogen will have to be 2 because if we make use of 4, it will exceed the given M+ which is 80.
∴
C₄ = 4 × 12 = 48
H₄ = 4 × 1 = 4
<u>N₂ = 2 × 14 = 28 </u>
<u> 80 </u>
As such, the molecular formula of the compound is C₄H₄N₂