How many grams of H2 will be produced from 12 grams of Mg

How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose

Classify this reaction: 2al+n2-> aln.

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