What does it mean when the question is asking which element is present and how many atoms each element has ?

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 mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a