Answer:
<h2>2.49 g/cm³</h2>
Explanation:
The density of a substance can be found by using the formula

From the question we have

We have the final answer as
<h3>2.49 g/cm³</h3>
Hope this helps you
Explanation:
atomic mass
Really...i think it can also be atomic number..
Answer: Volume – How much space an object or substance takes up. Mass – Measurement of the amount of matter in an object or substance.
Explanation:
I'm assuming that C is carbon.

55.1259 g of C
Oxygen and neon are both elements. Oxygen has 8 electrons and 8 protons. Neon has 10 electrons and 10 protons. Oxygen is also a non-metal element and Neon is a noble gas.