If 0.04625 mg. of Uranium-235 remains after 2.8 x 10^9 years, what was
the original mass of th...
Chemistry, 21.05.2020 01:08 genyjoannerubiera
If 0.04625 mg. of Uranium-235 remains after 2.8 x 10^9 years, what was
the original mass of the sample of Uranium-235? The half-life of Uranium-235 is 7.0 x 10^8 years.
Answers: 2
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What shape would a molecule with two bound groups and two lone pairs have?
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Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
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Chemistry, 22.06.2019 11:30
Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
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Chemistry, 22.06.2019 20:30
Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback
Answers: 2
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