Chemistry, 20.01.2020 20:31 kaliyab191
Radon is a naturally occurring radioactive gas found in the ground and in building materials. it is easily inhaled and emits alpha particles when it decays. cumulative radon exposure is a significant risk factor for lung cancer. calculate the density of radon at 277 k and 0.950 atm of pressure.
Answers: 2
Chemistry, 22.06.2019 22:30, vhife4901
Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.
Answers: 1
Chemistry, 23.06.2019 08:50, leah5981
Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas. caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible. relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)
Answers: 3
Radon is a naturally occurring radioactive gas found in the ground and in building materials. it is...
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