Each cubic centimeter of gold has a mass of 19.3 g. a cube of gold measures 4.23 cm on each edge. (a) what is the volume of the cube? what is its mass?

The volume of the gold is  

The mass of gold is 19.3 g

The density of gold is

Explanation:

Density is defined as the mass contained per unit volume.

Given : Mass of gold = 19.3 grams

To calculate the volume of cube, we use the equation:

where,

V = volume of cube

a = edge of cube

Volume of gold =

Putting values in above equation, we get:

Putting in the values we get:

Thus density of gold will be

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.