during an experiment you used a thermometer marked to1degree Celsius and obtained temperature reading of 45.2 degree celsius.44.9degree Celsius and 45.1 degree Celsius . the expected temperature was 45.0 degree Celsius . evaluate the precision and accuracy

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?