Chemistry, 04.11.2020 01:40 campbellalexus690
If an atom has 15 protons, 12 neutrons, and 19 electrons, what is the atom's electrical charge? A. -7 B. +7 C. +3 D. -4
Answers: 2
Chemistry, 22.06.2019 12:00
Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon
Answers: 2
Chemistry, 22.06.2019 15:00
Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.
Answers: 2
If an atom has 15 protons, 12 neutrons, and 19 electrons, what is the atom's electrical charge? A. -...
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