Use the image to determine the volume of the rock.
Initial volume: mL
Final volume: mL
Volume of rock: cm3

Explanation:

The volume of an object with irregular shape can be measured by placing the object into a graduated cylinder filled with water, and by measuring the change in volume of the water: the change in volume of the water is equal to the volume of the rock.

In this case, we have:

Initial volume of water, before the rock is placed inside the water: 13.7 mL

Final volume of water, after the rock is placed inside the water: 28.9 mL

Therefore, the change in volume of the water is:

And since we have the following equivalence:

Then it means that the volume of the rock is:

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.