Answer:Electrons are atoms that are magnetic
Explanation:All atoms have electrons
A. Combination of more that one kind of substance
Explanation:
A mixture in chemistry is an impure material made up of more than one kind of substance. By substance we refer to compounds and elements.
They have the following properties:
- Their composition is indefinite
- Their constituents retains their identities
- Their constituents reacts differently to changed conditions.
- They can easily be separated by physical methods.
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Answer:
[Co(NH3)5CO3]I3
Explanation:
The naming of coordination compounds follows certain rules specified by IUPAC. Usually, the name of the complex makes it quite easy to deduce its structure.
"Pentaamine" means that there are five NH3 ligands as shown in the structure. The ligand carbonato is CO3^2-. It has no prefix attached to it in the IUPAC name of the complex hence there is only one carbonato ligand present(recall that the complex has a coordination number of six). I did not enclose it within parenthesis as required in the question.
Lastly the III that appeared after the metal name "cobalt" shows its oxidation state. The iodide counter ions must then be 3 in number in order to satisfy this primary valency of the metal hence the inclusion of I3 in the structure of the complex.
Answer:
Neither
Explanation:
They both have the same mass and weight, just the 1kg box of concrete is more dense than the crumpled paper.
Answer:
2.498 mmol / liter
Explanation:
15 mg / dl would be 150 mg/ liter = .150 gm /l
.150 gm/l / 60.06 gm/ mole = .002498 mole/l = 2.498 mmol/l
