The table below gives the numbers of protons, electrons, and neutrons in four atoms. Number of electrons
39
40
39
40
Number of n
52
50
54
5
Atom
Number of protons
39
|40
39
40
Based on the information that is given, which atom in the table has the highest mass?
O1
D 2
) 3
4

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3no2(g)+h2o(l)→2hno3(l)+no(g) part a suppose that 4.2 mol no2 and 0.50 mol h2o combine and react completely. which reactant is in excess? express your answer as a chemical formula. nothing

Why does ammonia, nh3, behave as a base when it reacts with an acid? z

Which method would be best to separate a mixture of sand and gravel