Cho 2,9 gam andenhit X tác dụng hoàn toàn vs lượng dư dd AhNo3/NH3 ( nhiệt độ ) thu được 10,8 gam Ag . Công thức X là

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.