The mass of H202 is measured at 36 g. After decomposes, the amount of water left in the beaker is 12 g. What is the mass of oxygen released?

Displacement is the slope of a velocity vs. time graph a. true b. false

How can the number of core electrons be determined from the periodic table

What is the temperature in kelvin of a gas if it is allowed to expand from 1.50 l to 4.50 l? the initial temperature is 10.0°c and pressure is constant throughout the change. which equation should you use? t2= v2/v1 t1 what is the final temperature? ⇒ 849 k these are the answers.