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Chemistry, 23.06.2019 04:31
What is the amount of energy for a photon that has a 125 cm wavelength
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4786 joules of heat are transferred to a 89.0 gramsample of an unknown material, with an initialtemperature of 23.0°c. what is the specific heat of thematerialif the final temperature is 89.5 °c?
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Chemistry, 23.06.2019 18:30
The electron–pair geometry of a molecule is tetrahedral. what is its bond angle if there are no lone pairs of electrons?
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Chemistry, 23.06.2019 22:00
Achemist who studies water samples did a demonstration of how to test for lead in water. she added a clear solution of potassium iodide to a clear solution of lead nitrate. then a yellow swirling solid formed in the liquid. what is most likely true about the yellow solid?
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Air is a. compound b. element c. mixture d. solution...
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