How many atoms in 8.9 moles of iron

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

Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions

Why sncl2 is solid while sncl4 is liquid at room temprature explain it in easy way