Dave
Dave answered
No. The more ionic the bond, the stronger the electrolyte. The more covalent the bond, the less of an electrolyte. Most covalent bonds show some ionic characteristics, so many covalent compounds do have some electrolytic characteristics (but not nearly as strong as ionic compounds).
Dave
Dave answered
Mass number is protons plus neutrons and can be different for different isotopes. There are 2 isotopes of sodium, Na-22 and Na-23. The most common (in fact, pretty much 100%) is Na-23 which has a mass number of 23 (11 protons, 12 neutrons).
Dave
Dave answered
It depends on the material. In general, you calculate the volume of the sphere and then multiply by the density of the material. Volume of sphere = 4/3*pi*r3. Density of material = must be provided or found in reference material
Dave
Dave answered
A rhetorical question means it is not supposed to be answered because the answer is obvious. It is used to make a point. For example, if you say "Do you think I am an idiot?", you don't expect a response. You really mean "I am not an idiot you know!".
Dave
Dave answered
First, congrats for going back to school to complete your education. I "borrowed" this answer from a previous post, so I hope the info is correct (was 4 month-old post). My sincerest best luck to you. At 1300 rosa parks blvd detroit mi 4216 testing is from monday-friday @ 8:15am on monday and wednesday arrive … Read more
Dave
Dave answered question
The kinetic energy of the water molecules bumps the KCl around until a K+ ion dissociates from the Cl- ion. The polar water molecule surrounds the ions (hydrates them) with the partial negative charge of the O atom in water attracted to the positively charged K+ ions and the partially positive H atoms in water … Read more
Dave
Dave answered question
Not sure what your experiment was since you did not describe, but magnesium will develop a dull oxide coating when exposed to atmosphere (MgO). If your experiment involved weighing the magnesium, you would need to clean off the oxide coating to ensure you were weighing just the magnesium.