Question

1. which of the following support the law of definite proportions?

a. elements combine in specific ratios
b. 1 atom of oxygen combines with 2 atoms of hydrogen in water
c. each metal ion will combine with a particular number of nonmetal io
d. all of the above

Explanation:

The Law of Definite Proportions states that a chemical compound always contains exactly the same proportion of elements by mass. Option a states elements combine in specific ratios, which aligns with the law. Option b (1 O : 2 H in water) is a specific example of definite proportions. Option c (metal and non - metal ions combining in particular numbers) also reflects definite combining ratios. So all options support the law.

Answer:

d. all of the above