The scale on a map shows that 5 centimeters equals 2 kilometers what numbers of the centimeters on the map represents the actual distance of 5 km what is the actual number of kilometers that is represented by 2 cm on the map

2 cm would represent .8 of a kilometer

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.