Solar nebula. noun. A large cloud of gas and dust from which the sun, planets, and other solar system bodies formed.
could always look it up XD
Answer:
The correct answer is A scientific law.
Explanation:
Maximum scientific law has mathematical expression such as charles law,boils law,culombs law,newtons law,first and second law of thermodynamics,ficks law
Mathetical expression of scientific law helps to understand the parameters related to that law and makes the law easy to understand because if the mathematical expression of a scientific law is known to us then from the mathematical expression we can dictate the law.
Answer:
3.62moles
Explanation:
First let us generate a balanced equation for the reaction
2Na + Cl2 —> 2NaCl
Molar Mass of Na = 23g/mol
Mass of Na from the balanced equation = 2 x 23 = 46g
Molar Mass of NaCl = 23 + 35.5 = 58.5g/mol
Mass of NaCl from the balanced equation = 2 x 58.5 = 117g
From the question,
46g of Na produced 117g of NaCl.
Therefore, 83g of Na will produce = (83 x 117)/46 = 211.11g of NaCl
Converting this mass (211.11g of NaCl) to mole, we obtain:
n = Mass /Molar Mass
n = 211.11/ 58.5
3.62moles
