Answer:
See the answer below.
Explanation:
Fire has three major components:
- Heat
- Smoke
- Gases ( in form of CO, CO2 etc)
If the victim had died as a result of the fire, he/he would have inhaled smoke and hot gases from the fire. These components would have resulted in traces of burns and soot deposition in the trachea and lungs as well as traces of CO in the blood of the victim.
If the analysis of the victim's corpse does not reflect some of the results above, it can be effectively concluded that the victim has been dead before the fire.
<em>The single most important indicator of death by the fire would be the presence of CO in the blood of the victim's corpse. All others might be to a less significant degrees.</em>
They combine with oxygen atoms, I think.
Answer:
The process by which an unstable nucleus emits one or more particles or energy in the form of electromagnetic radiation.
Explanation:
Answer:
a variable (often denoted by x ) whose variation does not depend on that of another.
Explanation:
Answer: Option (d) is the correct answer.
Explanation:
It is given that mass of 
is 137.0 g.
Molar mass of is as follows.
Molar mass of = 2 × 14 + 3 × 16
= 76 g
Thus, number of moles will be calculated as follows.
No. of moles = 
= 
= 1.803 mol
There are 2 nitrogen (N) atoms present in the formula of dinitrogen trioxide. Also Avogadro's number equals 
atoms or molecules per mol.
Therefore, number of N molecules or atoms in is as follows.
Number of N atoms = 
= 
atoms
= 
atoms
Thus, we can conclude that there are atoms of N in in 137.0 grams of .
