2. Se amestecă soluțiile substanței Calciu astfel: - Soluția Rubidium
- Soluția Fier
- Cantitatea Argint de apă ( cu ρ=1g/mL)
Să se determine pentru soluția finală:
- Concentrația procentuală de masă
- Concentrația molară
- Normalitatea
- Concentrația molală
- Titrul
- Fracțiile molare
- Volumul de solvent
- Masa de solut.

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant