When a Container of Water Is Placed on a Laboratory

question 55

Multiple Choice

When a container of water is placed on a laboratory scale,the scale reads 120 g.Now a 20-g piece of copper (of density 8.9 g/cm³) is suspended from a thread and lowered into the water,not touching the bottom of the container.What will the scale now read? The density of water is 1.0 g/cm³.

• A)120 g
• B)122 g
• C)138 g
• D)140 g

---

Definitions:

Clan

A group of people united by actual or perceived kinship and descent, sharing a common ancestor and often organizing within larger tribal or social structures.

Ancestor

A person from whom one is descended, particularly from a distant past.

Kindred

A group of people related by blood or through marriage, often extended to include all relatives.

EGO

The part of the mind that mediates between the conscious and the unconscious and is responsible for reality testing and a sense of personal identity.