Two natural isotopes exist for silver. 51.83% of the atoms have a mass of 106.90509 u, and the remaining fraction has a mass of 108.9047 u. Calculate the atomic mass of silver.

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false