The B. Ca-F pair has the greatest electronegativity difference.
Electronegativities <em>increase from the lower left to the upper right</em> in the Periodic Table.
Ca is closest to the lower left, and F is in the upper right, so the Ca-F bond has the greatest electronegativity difference.
Answer:
32.6 %
Explanation:
Given data
- Mass of sucrose (solute): 22.8 grams
- Mass of water (solvent): 47.1 grams
Step 1: Calculate the mass of the solution
The mass of the solution is equal to the sum of the mass of the solute and the mass of the solvent.
m(solution) = m(solute) + m(solvent)
m(solution) = 22.8 g + 47.1 g
m(solution) = 69.9 g
Step 2: Calculate the percent-by-mass of sucrose in the solution
We will use the following expression.
Answer:
Longwave ridges = Global scale
High pressure system persists over the central plains for 4 days = Synoptic scale
Supercell thunderstorm that lasts for over an hour = mesoscale
A turbulent eddy = microscale
Explanation:
Global scale has a range of the entire earth
synoptic scale has a range of about 100-1000km and can last fro days to weeks
mesoscale has a range of 4-100km and lasts for a day maximum
microscale is the least of all atmospheric motions.
They determined that (1) An atom is mostly empty space with a sense, positively charged nucleus, because most particles passed straight through the gold foil, but occasionally they would deflect, sometimes by a very large margin
