Chemistry, 28.06.2019 03:30 emmmssss21
How many atoms are in one mole of gold? a) 1.97 x 1023 atoms. b) 6.02 x 1023 atoms c) 79 atoms. d) 197 atoms
Answers: 1
Chemistry, 22.06.2019 18:10
Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
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Chemistry, 22.06.2019 19:30
Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol
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Chemistry, 23.06.2019 02:20
Why dose heating increase the speed at which a solution dissolved in water
Answers: 1
How many atoms are in one mole of gold? a) 1.97 x 1023 atoms. b) 6.02 x 1023 atoms c) 79 atoms. d)...
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