Calculate
energy if the wavelength of the
emitted flame is 6.50E-20 m.

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

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

What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.