General Chemistry Answers

If 2.85 moles of H₂ and 1.55 moles of O₂ react how many moles of H₂O can be produced in the reaction below?

2 H₂(g) + O₂(g) → 2 H₂O(g)

Copper can be found as a free metal, but most often it is found in a compound with sulfur. The ore is heated with oxygen to change it to copper oxide. Sulfur dioxide gas also is formed. Write a balanced chemical equation for this reaction. [You must include state: (s), (l), (g), (aq).]

. Catalase is an important enzyme that breaks down its substrate, H2O2, into water and oxygen in nearly all living cells. The enzyme has k2 = 1.1*107 sec-1 and Km = 2.0 mM. An experiment was set up under the conditions when the reaction rate is independent of [H2O2]. In this experiment, at what concentration of catalase (use SI units and scientific notation) will the reaction have a rate of 850 mM/min?

If 200cm² of carbon iv oxide were collected over water at 18°c and 700mmHg determine the volume of the dry gas stp

What are the different forms of radiation on the electromagnetic spectrum?

A 2.0-liter container of nitrogen had a pressure of 3.2 atm. What volume would be

necessary to decrease the pressure to 1.0 atm.

find 10 moles in KCl

N₂+ 3H₂ → 2NH₃ If 14.00 g of N₂ reacts with the correct amount of H₂ and produces 17.03 g of NH₃ then what mass of H₂ is required for a complete reaction, with no waste reactant?

pure copper is immune to galvanic corrosion than brass.why?

2. Calculate the mass density of air at the surface of the Earth using the ideal gas law and assuming global average values of surface pressure (984 hPa) and temperature (288 K).