Complete this sentence: engineering is an important profession. as a member of this profession, engineers are expected to exhibit the highest standards of and

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

What type of matter is made of only one kind of atom

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.