How many molds of atoms are there in each compound ? 1. al2s3 2. nano3 3. ba(oh)2

Name the element in group 17, period 2. (periodic table)

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

How many moles are in 123.0 grams of kclo4?