Which of the following statements are true?
a. positrons are similar in ionizing power...
Chemistry, 13.12.2019 20:31 missmontgomery21
Which of the following statements are true?
a. positrons are similar in ionizing power and penetrating power to beta particles
b. a positron is the antiparticle of the electron
c. beta decay occurs when a neutron changes into a proton while emitting an electron
d. an alpha particle is a helium 2+ ion
e. all of the above are true
Answers: 1
Chemistry, 22.06.2019 15:10
The ozone molecule o3 has a permanent dipole moment of 1.8Γ10β30 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 2.5Γ10β10 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 17:00
Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease
Answers: 1
Chemistry, 22.06.2019 17:50
Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?
Answers: 2
Chemistry, 22.06.2019 19:00
Which statement best describes what happens when molecular compounds melt
Answers: 1
Mathematics, 13.09.2020 08:01
Health, 13.09.2020 08:01
French, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
English, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
English, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Social Studies, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01
Mathematics, 13.09.2020 08:01