Two elements `X` (at.mass 16) and Y (at.mass 14) combine to form compounds `A,B and C`. The ratio be different masses of Y which combine with a fixed mass of X in `A,B and C` is `1 : 3 : 5.` If 32 parts by mass of X combines with 84 parts by mass of Y in B then in `C,16` parts by mass of X will combine with ...... parts by mass of Y :

Two elements A and B combine chemically to from compounds combining with a fixed mass of A in I, II and III is 1:3:5 , if 32 parts by mass of A combine with 84 parts by mass of B in II, then III, 16 parts of A will combine with................ by mass of B . (a) 14 parts by mass of Y (b) 42 parts by mass of Y (c) 70 parts by mass of Y (d) 84 parts by mass of Y

Two elements A (Atomic Mass 12 g/mole) and B (Atomic Mass 16 g/mole) combine to yield a compound. The percentage mass of A in the compound is 27.3% . The formula of the compound will be :

Suppose two elements X and Y combine to form two compound XY_2 and X_2Y_3 weighs 85g . The atomic masses of X and Y are respectively :

Two elements X and Y combine to form a compound XY. Under what conditions the bond formed between them will be ionic ?

Two elemets X( atomic weight =75) and Y( atomic weight =16) combine to give a compound having 75.8% X. The formula of the compound is

Two elemets X( atomic weight =75) and Y( atomic weight =16) combine to give a compound having 75.8% X. The formula of the compound is

The combined mass of nucleons is

A ________ is always made up of different elements combined in a fixed ratio by mass.

1.5 mol of O_(2) combines with Mg to form oxide MgO. The mass of Mg (at. Mass 24) that has combined is

An element A (atomic weight = 12) and B (atomic weight = 35.5) combines to form a compound X. If 4 mol of B combines with 1 mol of A to give 1 mol of X. The weight of 1 mol of X would be :