Chemistry, 26.07.2019 08:50 alishabhappy1
Why do elements in the same group have similar properities
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A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?
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Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh
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Drug abuse will not lead to physical and psychological dependence. true or false ?
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Why do elements in the same group have similar properities...
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