06/17/23
Chemistry question =----
Rubidium has two naturally occurring isotopes. The weight average atomic mass of Rb is 85.4678 u. If 72.15% of Rb is found as Rb-85 (84.9117 u), what is the mass of the other isotope?a. 0.5657 ub....
more
06/16/23
I have a doubt-
Why is the ionization energy required for Cl- more than F-? Can't we say that the nucleus of Cl- will be far from the valence e-, so the energy required should be less than that of F- as the...
more
06/15/23
A cannonball gets shot out of a cannon. Neglecting air resistance, what is the direction of the acceleration when the cannonball is in the air?
A. The acceleration is pointing in the direction of the cannonball's motion.B. The acceleration is pointing up.C. There is no acceleration on the cannonball when it is in the air.D. The...
more
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.