4) State the law of constant proportion.
Answers
Answer:
Law of constant proportion states that a chemical compound always contains exactly the same proportion of elements by mass. For a given unique chemical compound, its elemental composition is same for any sample that exists. ... If we take some mass of water, 8/9 of its mass will be oxygen and 1/9 will be hydrogen.
Answer:
it states that a chemical compound alaws consist of the same element combined in the same proportion by mass
Ex : In a compound such as water, the ratio of
the mass of hydrogen to the mass of oxygen
is always 1:8, whatever the source of water.
Thus, if 9 g of water is decomposed, 1 g of
hydrogen and 8 g of oxygen are always
obtained. Similarly in ammonia, nitrogen and
hydrogen are always present in the ratio 14:3
by mass, whatever the method or the source
from which it is obtained