Answer:
yes
Explanation:
The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all life come from preexisting life. The cell theory is so established today that it forms one of the unifying principles of biology.
A.)49.4974874 moles or 49.5 moles
B.)2.980808730172671e+25 or 3e+25
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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