B. 196 m
C. 260 m
D. 162.5 m
The Correct answer to this question for Penn Foster Students is: 137.5 m
Molecular compounds often have lower melting and boiling points. Ionic compounds cannot conduct electricity when they are in a solid form.
Any substance made up of similar molecules with atoms from two or more different chemical elements is referred to as a chemical compound. Atoms from more over 100 specific chemical elements, both in their pure forms and when mixed to form chemical compounds, make up all matter in the universe.
For instance, the atoms that make up carbon differ from those which make it up iron, which differ from the ones that make up gold. Molecular compounds often have lower melting and boiling points. Ionic compounds cannot conduct electricity when they are in a solid form.
Therefore, molecular compounds often have lower melting and boiling points. Ionic compounds cannot conduct electricity when they are in a solid form.
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Answer: Petroleum
Explanation:
Petroleum is a fossil fuel. It is also called as crude oil. It is a yellowish black liquid that can be found beneath the earth crust. It is a highly combustible fuel and generates lot of heat energy necessary for running the vehicle. It is the most commonly used fuel for shipping, and road transportation of goods and services. It helps the vehicles to run for long and covering the large distance.
The food availability would be affected by the shortage in absence of petroleum.