How many molecules of O2 are required to react with 3.6 mol H2? 2H2+O2=2H2O

Why did southern business leaders want to increase the number of slaves

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

What does an electron configuration for an atom relate to the atoms placement on the periodic table