Chemistry, 26.06.2019 03:10 juansoto227711
Isotopes are separated by a. crystallisation b. sublimation c. distillation d. filtration in an atomic explosion, enormous energy is released which is due to a. conversion of chemical energy into heat energy b. conversion of mechanical energy into nuclear energy c. conversion of mass into energy d. conversion of neutrons into protons which among the following is a positively charged particle emitted by a radioactive element? a. beta ray b. alpha ray c. cathode ray d. gamma ray
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Which description best characterization the motion of particles in a solid
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The bone of a dinosaur and the imprint of a leaf are examples of which kind of fossils? a) index b) body c) amber d) trace
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0.070g of hydride of carbon occupies 56cm^3 at s.t.p when vaporized and contained 14.29% by mass of hydrogen.what is the formula for the hydrocarbon
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Isotopes are separated by a. crystallisation b. sublimation c. distillation d. filtration in an atom...
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