Consider the following thermochemical equation: B2H6 (g) + 3 O2 (g) ® B2O3 (s) + 3 H2O (g) DHcomb = – 2035 kJ/mol

Calculate the amount of heat released when 10.0 g of diborane (B2H6) is burned.

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

What is the name of the enzyme that forms at the start of transcription?