Answer:
<h2>"resonance" refers to the idea that molecules are resonating rapidly between different bonding patterns. </h2>
Explanation:
This is the statement that defines resonance phenomenon.
In chemistry, resonance refers to some way of describing certain bonds, with the construction of resonance structures. This definition is often used to explain delocalised electrons that cannot be explained with covalent bonds.
Answer:
In a volumetric flask of marking 500.0 mL add 138.75 grams of calcium chloride and add small amount of water to dissolve solute completely. After the solute gets completely soluble add more water up till the mark of 500 ml.
Explanation:
Concentration of calcium chloride = 2.5 M
Volume of the solution = 500.0 ml = 0.5000 L
Moles of calcium chloride = n
n = moles of solute
c = concentration of solution
V = volume of the solution in L
Mass of calcium chloride = 111 g/mol × 1.2500 mol = 138.75 g
In a volumetric flask of marking 500.0 mL add 138.75 grams of calcium chloride and add small amount of water to dissolve solute completely. After the the solute gets completely soluble add more water up till the mark of 500 ml.
Anhydrous calcium chloride is hygroscopic and can attract water from the atmosphere. After anhydrous calcium chloride gets water, it will become hydrous calcium chloride. This allows the a<span>nhydrous calcium chloride to reduce water vapor continuously in the air-tight sealed container. It can be used to protect substance that can react with water or preserve food by lowering the humidity.</span>
Answer:
so 0.15 moles X 22.4 dm3/mole=3.36 dm3. Next we find the moles of hexane combusted, and then the moles of CO2. Finally, we find the volume of CO2 using the fact that at STP, 1 mole of gas = 22.4 dm3.
Answer:
P-block
Explanation:
Chlorine
Atomic number (Z) 17
Group group 17 (halogens)
Period period 3
Block p-block