The answer would be the last oneee
Answer:
atom
Explanation:
The sodium atom has a single valence electron that it can easily lose. (If the sodium atom loses its valence electron, it achieves the stable electron configuration of neon.) The chlorine atom has seven valence electrons and can easily gain one electron.
Answer:To be honest i dont know
Explanation:
e
Answer:
The density of the substance is 1.0611 
Explanation:
The density of a substance is a characteristic property that matter, whether solids, liquids or gases, has to be compressed in a given space, that is, it allows us to measure the amount of mass in a certain volume of a substance.
Density is expressed as follows:

In this case:
- density: ?
- mass: 21.1164 grams
- volume: 19.9 cm³
Replacing:

density= 1.0611 
<u><em>The density of the substance is 1.0611 </em></u>
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