Two similar circles are shown. The circumference of the larger circle, with radius OB, is 3 times the
circumference of the smaller circle, with radius OA.
Radius OB measures x units. Which expression
represents the circumference of the smaller circle with
radius OA?
o (1}x unit
units
of }x units
0277x units
6TX units
A
B

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.