A substance with a volume of 2/3 cm (3) has a mass of 4/9 g. Find the volume of this substance weighing 1 g.

According to the condition of this task, it is required to perform a calculation and determine the volume of a given substance with a mass of 1 g.

To solve the problem, it is necessary to draw up a proportion and carry out its solution.

2/3 cm3 -> 4/9 g;

x cm3 -> 1 g;

We solve the proportion using the cross method:

x = (2/3 * 1) / (4/9) = (2 * 9) / (3 * 4) = 3/2 = 1.5 (cm3);

Answer: The volume of a given substance weighing 1 g is 1.5 cm3.