145.3 grams of Magnesium Oxide (MgO) decomposes and produces 32 grams Magnesium (Mg) and Oxygen gas
(O2). According to the law of conservation of mass, how
much Oxygen gas was produced?

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

When the water vapor cools it condenses select a number that represents his process on the

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?