Chemistry, 06.11.2020 18:50 emojigirl2824
As a result of Ernest Rutherford's Gold Foil experiment, which model of the atom is thought
to be true and why?Choose all statements that are true.
I. Protons, electrons, and neutrons are evenly distributed throughout the atom.
II. The atom has a small and positively charged nucleus, with electrons distributed
outside the nucleus.
III. The atom is mostly empty space with protons, neutrons and electrons in the
nucleus.
IV. Atoms do not carry an overall charge and are considered neutral
V. Atoms have a negative charge
Answers: 1
Chemistry, 23.06.2019 00:00
Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
Answers: 3
Chemistry, 23.06.2019 01:30
Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.
Answers: 2
Chemistry, 23.06.2019 02:00
To calculate the molarity of a solution, you need to know the moles of solute and the
Answers: 2
As a result of Ernest Rutherford's Gold Foil experiment, which model of the atom is thought
to be t...
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