What is the mass of the iron cube, if the density is 0.0168/cmsquared

Explanation:

The mass of this iron cube depends on its side length. Assume that the side length of this cube is x. The volume of a cube is then given by:

We know that density is described as a ratio between mass and volume, meaning:

Rearranging this equation for mass, we obtain:

Substituting the value of volume and density, we get:

Based on the value of x, the mass in grams can be obtained using this equation.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

a is the answer to this question

explanation: