the average propane cylinder for a residential grill holds approximately 18 kg of propane. how much energy (in kj) is released by the combustion of 12.50 kilograms of propane in sufficient oxygen?

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Aman applies a force of 500n to push a truck 100m down the street how much does he do?

Match the following items to the correct description. 1. detainment centers for many of hitler's "undesirable" citizens, including those of the jewish race inflation 2. a form of fascist government; probably the most extreme form of tyranny first month of 1933 3. leadership taken and directed by force, often with bloodshed. an oppressive regime tyrannical government 4. financial instability brought on by price increases nazism 5. hitler became the prime minister concentration camps