Which atomic model describes the atom as a nucleus surrounded by electrons that travel as waves in the electron cloud? (4 points
1 answer:
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Density is the ratio of mass to the volume.
The mathematical expression is given as:
Now, density of isooctane =
Volume =
Since, 1 gallon = 3.78 L
So, 3.8 gal =
=
As, 1 L = 1000 mL
Therefore, =
Volume in mL =
Put the values,
=
Hence, mass of 3.8 gal of the gasoline is .
Polyatomic ions: ,
,
,
,
, and
Monatomic ions: ,
, and
In chemistry, monoatomic ions are ions that consist of only a single type of atom. They are usually positive or negatively charged and are otherwise known as simple ions. Examples include ,
, and
Polyatomic ions, on the other hand, are ions that consist of more than one atom, unlike monoatomic ions. The two or more atoms are covalently bonded and the entire structure behaves like a single chemical entity in reactions. Polyatomic ions are otherwise known as molecular ions.
Examples of polyatomic ions are ,
,
,
,
, and
Thus, from the diagram:
- Polyatomic ions:
,
,
,
,
, and
- Monatomic ions:
,
, and
More on ions can be found here: brainly.com/question/14982375
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