Answer:
B. Fight
Explanation:
fight is not a goal of united nation, it's a peaceful organization that maintains peace and prosperity all across the globe. it has various goals like discussion on environmental and foreign issues
Answer:
Valency of the two elements
Explanation:
In order to correctly formularize the compound, the student needs to ask of the valences of the elements involved.
Chlorine has valency of -1, while Barium +2.
The exchange of valency gives the formula
.
Another explanation is that Barium donates 2 electrons which the chlorine atoms accept, in order to form the covalent bond.
I hope this was helpful.
Blood is a red coloured fluid which consists of two parts plasma and corpuscles
Answer:
Nitrogen (N), carbon (C), hydrogen (H) and oxygen (O).
Explanation:
Hello,
Given the shown organic compound, we refer to types of atoms to the elements present in the compound, thus, we find nitrogen (N), carbon (C), hydrogen (H) and oxygen (O) that are bonded via single or double bonds in such compound.
Let's remember that compounds like that, having those elements are mainly found in biochemical substances such as proteins, a very important source of benefits for our body.
Regards.
Answer: The atomic weight of the metal would be 85.47.
Explanation:
Mass of isotope 1 of metal = 84.9118
% abundance of isotope 1 of metal = 72.15% =
Mass of isotope 2 of metal= 86.9092
% abundance of isotope 2 of metal = 27.85% =
Formula used for average atomic mass of an element :

Therefore, the atomic weight of the metal would be 85.47.