The atoms that make up a molecule can be of the same element or different types. Diatomic molecules are a specific class of molecules that consist of two molecules of the same element. If the molecule is composed of atoms of at least two different elements, it is a chemical compound.
The cost of light rail construction varies widely, largely depending on the amount of tunneling and elevated structures required. A survey of North American light rail projects shows that costs of most LRT systems range from $15 million to over $100 million per mile.he cost of 17 miles (27 km) of highway improvements and 19 miles (31 km) of double-track light rail worked out to $19.3 million per highway lane-mile and $27.6 million per LRT track-mile. The project came in under budget and 22 months ahead of schedule.
For example, homes built with the majority of the features listed under the highest class of construction in 2012 used $110 as the multiplying factor. Mid-grade construction used the average square-foot cost of $95.Houses with standard features used $79 as a multiplier. Multiply the cost by the number of square feet from your blueprint calculations to estimate your building costs.ccurately estimating home-construction costs requires using the blueprints for your new home. Estimating the cost of building a new home helps plan for the features you want, while staying within your basic budget.