Which statement describes how favorable traits in a population relate to natural selection?
They are the only traits that ever exist in the population
They build in the population over time.
They are rarely passed on to offspring
They are found only in a few individuals within the population

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

What is the percent by mass of oxygen in fe2o3