Question

I have a copper coin. What properties of material are shown by it? i) hardness
ii) float in water.
iii) opaque
iv) insoluble in water.​

Answer 1

Question-

I have a copper coin. What properties of the material are shown by it?

i) hardness

ii) float in water.

iii) opaque

iv) insoluble in water.​

Answer-

i), iii) and iv) are the properties shown by the copper coin.

Copper has a density of 8.92 g/cm3. Since the penny has greater density than the water, it will sink in the water. However, if you have an object to support the penny on the surface of the water, the penny will not sink.

Answer 2

Answer:

i,iii,iv

Explanation:

it canot be float in water because the density of water is lesser than density of the coin

The copper is a solid.

the physical and chemical change make it as seperate than other.

It is also a metal, so it posses the properties of metals like ductility etc.