Answer:
- 3.1 cm
- 14.1%
Explanation:
L.error = student's measurement - actual length
L.error = 23.1-20.0
= 3.1
the percentage is 3.1/22*100=14.1%
IUPAC name of Na2O is sodium oxide.
<h3><u>Explanation</u>:</h3>
Na2O is the ionic compound containing sodium and oxygen in molar ratio of 2:1. This compound is named by International Union for Pure and Applied Chemistry as Sodium oxide.
This substance is used in a varied number of cases. Its the anhydride of the popularly used base sodium hydroxide. So adding waste produces sodium hydroxide solution. Its used in glass and ceramic factories too. Sodium silicates are also produced from this substance. Its also used to produce soda ash.
No, there is no such thing as a whole eye transplant because the optic nerve wouldnt work
Answer:
Option B and Option C
Explanation:
The atomic mass of an element is the average weight of its mass numbers of it's isotopes in nature.
