One in a series of reactions that inflate air bags in automobiles is the decomposition of sodium azide (NaN3). Determine the mass of N2 produced if 100.0 g of NaN3 is decomposed. Shape 2NaN3 2Na + 3N2

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

How many atoms or molecules are there in a mole of a substance?

If 2 molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product, then what is the representation of the reaction?