Answer:
Forensic methods and techniques.
Explanation:
Forensic methods and techniques include preparing for the execution of the examination, the examination, the collection of objects and samples, the preparation of evidence for laboratory expert evaluation, the interpretation and reporting of evidence.
The purpose of these techniques is to gather evidence to establish the truth.
The main goals of forensics are the reconstruction of the crime, the identification of the suspects, the determination of the motive of the crime, the arrest of the suspect. Forensics research is based on biology, physics, and chemistry. Forensics is one of the most important categories of criminalistics today.
Explanation:
Carbon dioxide is eliminated from the body as a gas through exhaled air. When the volumes of air breathed into and out of the lungs increases above what is normal (hyperventilation), more carbon dioxide than normal is eliminated.
When carbon dioxide is dissolved in water forms carbonic acid which is an acid, having less CO2 in the system affects the balance of the normal pH tips towards the blood pH to become alkaline (higher pH), this condition is called respiratory alkalosis.
We can observe the equilibrium in this equation:
CO2 + H2O ← H2CO3 ← H+ + HCO3
<em>Here we observe how losing CO2 during hyperventilation leads to a decrease of H+ and therefore an increase in pH</em>.
I hope you find this information useful and interesting! Good luck!
Answer: The criteria to place elements into groups and periods lies in their atomic number
Explanation:
As we know that period is the horizontal rows of elements in the periodic table and groups are vertical column of elements in the periodic table.
In a period we place those elements that have same number of shells and in a group those elements are placed that have different number of shells and the number of shells increases from top to bottom in a periodic table
For example
Sodium having symbol Na, atomic number of sodium is eleven it's electronic configuration is 1s2,2s2,2p6,3s1, next to it in a period is places potassium having symbol,K, it's electronic configuration is 1s2,2s2,2p6,3s2.
Sodium and potassium both r placed in a period not in a group because both of these have same outer most shell, only the number of electron in outer most shell varies.
Because hydrogen bonds can be formed between the oxygen on one molecule and the hydrogen of another molecule; which are stronger bonds compared to the weaker dipole-dipole intermolecular bonding of ethane
Answer:
1-air
2-decrease
3-water
4-gas
5-liquid
I THINK the answer to part b is A but I am not entirely sure
Explanation:
