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Diamond is the hardest known substance. Fe metal is soft sunstance. Using your knowledge of bonding, explain why diamond is hard and iron is soft.
What is the mole fraction of solute and the molal concentration for an aqueous solution
What is a trans fat? Why would partially hydrogenated oils contain higher amounts of trans fats than natural fats and oils? Why are saturated and trans fats considered a risk factor for cardiovascular disease?
calculate the parts per thousand deviation in ml. for the three titrations. b) Would an additional titration be advisable? give a reason?
Using the list of Active Ingredients provided, was there enough HCl added to completely neutralize the Naproxen Sodium? (Show ALL calculations below)
what is the pH of a solution prepared by dissolving 4.5 g HCl in water to make 410 mL of solution?
State the chemical reaction that took place in the patient's body.
Given the following balanced reaction, if a mixture of 1.50 mol of Al and 3.00 mol of Cl2 are allowed to react, how many moles of AlCl3 are formed, assuming a 75% yield?
The isomerization of cyclopropane to form propene is a first-order reaction. At 760 K, 85% of a sample of cyclopropane changes to propene in 79.0 min. Determine the rate constant for this reaction at 760 K
Construct the appropriate calibration curve as described in this lab and determine the %(W/W) of fluoride in the original toothpaste sample:
What is the theoretical yield of AgCl if 30.2 mL of 0.1000 M AgNO3 reacts with an excess of 0.1000 M HCl
When photons with a wavelength of 310. nm strike a magnesium plate, the maximum velocity of the ejected electrons is 3.45 × 105 m/s.
The principal quantum number, n, describes the energy level of a particular orbital as a function of the distance from the center of the nucleus. Additional quantum numbers exist to quantify the other characteristics of the electron
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