Chemistry, 21.10.2020 23:01 cristinaledford3696
59 La massa atomica relativa dell'atomo di stagno
è 118,69. Qual è la sua massa atomica assoluta?
60 La massa atomica assoluta del potassio è
6,49. 10-26 kg. Calcola la massa (in g) di 2. 1020
atomi di potassio.
61 La massa atomica relativa dello iodio è 126,905.
Calcola la massa atomica assoluta (in kg).
62 La massa atomica assoluta dell'ossigeno è
2,66 10-26 kg. Calcola la massa atomica
relativa.
Answers: 3
Chemistry, 21.06.2019 23:40
If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?
Answers: 2
Chemistry, 22.06.2019 11:30
For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph
Answers: 3
Chemistry, 23.06.2019 01:20
Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)
Answers: 1
59 La massa atomica relativa dell'atomo di stagno
è 118,69. Qual è la sua massa atomica assoluta?
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