Ablock is found to have a volume of 35.3 cm^3. it's mass is 31.7 g. calculate the density of the block.

The density of block is

Explanation:

To calculate mass of a substance, we use the equation:

We are given:

Volume of block =

Mass of block = 31.7 g

Putting values in above equation, we get:

Hence, the density of block is

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.