Chemistry, 21.04.2021 19:40 wyattgrubb00
1. a) Une jeune femme ayant la fibrose kystique a besoin d'un traitement
d'oxygène quelques fois par jours. Combien de moles d'oxygène moléculaire
est-ce qu'il y a dans son cylindre de 42.OL?
Answers: 1
Chemistry, 22.06.2019 15:10, kolbehoneyman
The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion. what is the frequency f of oscillation?
Answers: 2
Chemistry, 22.06.2019 18:30, kate3887
When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?
Answers: 1
1. a) Une jeune femme ayant la fibrose kystique a besoin d'un traitement
d'oxygène quelques fois p...
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