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nversions and Scientific Notation
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CHEMWORK
The Mariana Trench is the deepest point in the Pacific Ocean at 10,924 m. This is nearly 29 times the height of the Empire State building in New York City.
1 pr
How deep is the Mariana Trench in
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feet
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fathoms
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leagues
1 pt
Use these exact conversions to help solve the problem:
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1 pt
6 ft
= 1 fathom
100 fathoms = 1 cable length
10 cable lengths = 1 nautical mile
3 nautical miles = 1 league
1 pt
1 pt
Note: Miles and nautical miles are not equivalent.
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The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned