Other Chemistry Answers

1. Balence the fallowing equation: Fe(s)+O2(g)----> Fe2O3(s)

2. Balence the fallowing equation: NH3(g)+O2(g)----> N2(g)+H20(g)

3. Hydrogen and oxygen react with each other according to the equation:
2 H2(g)+O2(g)---> 2 H2O(g)
If 5.00 mol of O2 react with an unlimited amount of hydrogen, what amount (in moles) of H2O will be produced?

4. A sample of helium gas has a valume of 620. mL at a temperature of 500. K. If we decrease the temperature to 100. K while keeping the pressure consistent, what will the new volume be?

what will the oxidation potential of a ferrous-ferric system in which a ratio (Fe⁺⁺)/(Fe⁺⁺⁺) is 10

Describe briefly the function of the primary X-rays and the analysing crystal as they are used in X-ray spectrography?

this appeared in my qualitative analysis module

how would you use silver nitrate reagent to distinguish between tartaric acid and one of its salts?

give the four main ideas behind the particulate theory of matter

How much heat is produced by the complete combustion of 218 g of CH4?

Predict and Discuss the Operational troubles that Boiler is expected to suffer if the existing source of water is used as such for the intended purpose? Your discussion should contain Definition of Trouble, Disadvantages and Removal techniques

The LD50 for a substance is the dose that would be lethal for 50% of the population that receive that dose. The LD50 for aspirin in rats is 1.75 grams per kilogram of body weight. How many aspirin tablets, each of which contains 325 mg of aspirin, would you have to feed a rat weighing 290. g to give him this dose?

How much energy is emitted by 39.1 mg of sodium atoms emitting light at this wavelength?
Answer in units of J.

A beaker containing 250.0 g of water is heated with 1500.0 J of heat energy. If the temperature of the water changed from 22.0000oC to 23.4354oC, what is the specific heat of water?