Chemistry, 25.01.2020 16:31 XxDonaldTrumpxX452
Calculate the enthalpy change for the reaction ca(s)+n2(g)+3o2(g)⟶ca(no3)2(s) from the following equations: 8ca(s)+ca(no3)2(s)→ca3n2(s)+6cao(s) δh = -3304 kj ca3n2(s)⟶3ca(s)+n2(g) δh = +432 kj 2cao(s)⟶2ca(s)+o2(g) δh = +1270 kj
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If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?
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Chemistry, 22.06.2019 08:00
Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods
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Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
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Chemistry, 22.06.2019 20:40
What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.
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Calculate the enthalpy change for the reaction ca(s)+n2(g)+3o2(g)⟶ca(no3)2(s) from the following equ...
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