1. Cần bao nhiêu tấn quặng pirit sắt chứa 90% FeS2 để điều chế 224 lít SO2 đktc. Biết H=90%. 2. Đốt cháy 2 tấn quặng pirit sắt chứa 15% tạp chất. H=75%. Tính VSO2 thu được đktc

How have the greenhouse gasses increased from the year 2000 to 2018

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.