If equal masses of CH4 and O2 are placed in a sealed container and the internal pressure is 3.0 atm, what is the partial pressure of oxygen

What is the percentage composition of carbon in the compound ch4

Which type of fossil does this image depict?

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98