Identifying Relationships A population of rabbits evolves thicker fur in
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Answer : The formula of hexaaquamanganese(II)sulfate is .
Explanation :
Rules for writing formulas of coordination complexes :
- Central metal is written first and then the ligands are written along with their prefixes.
- The anion ligands are written before the neutral ligands.
- If there are more than one anion ligands or neutral ligands then they are written in alphabetical order.
The given name of complex is, hexaaquamanganese(ii) sulfate.
In this, the central metal is manganese which is written as Mn and the ligand is water (which is a neutral ligand) is written as and an anion is sulfate which is written as
.
Water is a neutral ligand and sulphate has a charge of -2. As the overall complex is neutral the metal bears a +2 charge which is represented in Roman numeral after the metal.
Therefore, the formula of hexaaquamanganese(II)sulfate is written as .
Answer:
Explanation:
21. Atoms are not created or destroyed means that atoms that you begin with are the atoms that you will end with. The catch is that the atoms will rearrange to give you new compounds, but the atoms that you initially had are the atoms you will still have after reaction. For eg, if you started with eggs and made omelet. Omelet is a "new" compound, but the atoms that were in the eggs have rearranged to become the omelet so can you see that atoms were not created or destroyed to make the omelet.
22. Yes because amount of products you make depends on how much reactants you have. For eg, I need two graham cracker(GC), one marshmallow(M), and one chocolate (C) to make a s'more. If I get more of each item then I can make more s'mores and consequently having minimum amounts results in less s'mores that I make.
23. Not possible, due to law of conservation of matter and energy. Atoms cannot be created nor be destroyed, they are simply rearranged. For eg, Taking A + B cannot give you a new compound with a chemical formula D or XZ. A + B can however give you AB which is rearrangement of the starting atoms.
24. Chemical equation is balanced when atoms on reactant side and atoms of product side are in equal counts. I have attached a graphic below for more help.
