How many moles of gas does it take to occupy 155 liters at a pressure of 2.3 atm and a temperature of 340K.

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Draw the structure for 5-isopropyl-2-methyl-3-nonene

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?