What is the mass of a rectangular cube with dimensions of 3 cm x 2 cm x to 10 cm and a density of 10 g/cm^3

d=m/V so m=Vd

m=60cm^3 * 10g/cm^3=600g

Mass = 0.1667 g

Given data:

Density of cube =  10 g/cm3

Volume of cube  = 3 cm x 2 cm x 10 cm = 60 cm3

Mass of cube = ?

Solution:

Mass = Density/Volume

By putting values in above formula:

Mass = 10/60 = 0.1667 g

Hence the mass of a cube is the density/volume of the cube. As the density of the cube is very less than volume, so its mass is also less than 1 which is 0.1667 g.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

it is the most commonly accepted one