Chemistry, 14.11.2020 01:00 hanahspeers
Mrs. Butler has a sample of luminol, its density is 1.43g/cm3, the luminol has a volume of 50cm3, what is the mass of the luminol sample?
Answers: 2
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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.
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Chemistry, 22.06.2019 19:20
Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?
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Chemistry, 22.06.2019 22:00
How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?
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Chemistry, 23.06.2019 10:00
1.9 mol hcl and 3.9 mol naoh react according to the equation hcl + naoh ββ nacl + h2o . if the limiting reactant is hcl, calculate the amount of nacl formed.
Answers: 1
Mrs. Butler has a sample of luminol, its density is 1.43g/cm3, the luminol has a volume
of 50cm3,...
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