5. the element copper has naturally occurring isotopes with mass numbers of 63
and 65. the rel...
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Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy
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What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?
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An unknown substance has been shown to have weak covalent bonds. which of the following is most likely a property of this substance? a. high ph b. high conductivity c. low melting point d. low flammability
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A250 g sample of water with an initial temperatureof 98.8 closes 6500 joules of heat. what is the finaltemperature of the water?
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