Chemistry, 26.09.2019 04:00 starfox5454
Which is true for a substance that releases energy?
a) the energy release decreases the molecular motion and the kinetic energy of the substance.
b) the energy release decreases the molecular motion but increases the kinetic energy of the substance.
c) the energy release increases the molecular motion and the kinetic energy of the substance.
d) the energy release increases the molecular motion but decreases the kinetic energy of the substance.
e) the energy release is used only to change the state of the substance.
Answers: 2
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Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
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Chemistry, 22.06.2019 09:00
Particles vibrate in a rigid structure and do not move relative to their neighbors.
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Chemistry, 22.06.2019 10:50
An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons
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Which is true for a substance that releases energy?
a) the energy release decreases the molec...
a) the energy release decreases the molec...
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