Which statement accurately describes the atoms of a specific element?
A. A magnesium, Mg, atom contains 12 protons inside the nucleus and 12 electrons outside the nucleus.
B. An aluminum, Al, atom contains 27 electrons and 27 protons inside the nucleus.
C. A cadmium, Cd, atom contains 60 electrons outside the nucleus and 48 neutrons
inside the nucleus.
D. An indium, In, atom contains 115 protons inside the nucleus and 49 neutrons outside the nucleus.
Answers: 1
Chemistry, 22.06.2019 12:50
What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate
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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, 23.06.2019 03:40
The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of 1 x 10^-3 moles of naoh? you may assume no volume change to the solution upon addition of the naoh.
Answers: 2
Chemistry, 23.06.2019 15:00
The coriolis effect influences neither wind speed nor wind direction wind speed both wind speed and wind direction wind direction
Answers: 1
Which statement accurately describes the atoms of a specific element?
A. A magnesium, Mg, atom cont...
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