Because of the different ingredients put in solution, and salt water.
Petroleum stores energy from the sun and is carbon based, this characteristics make it a valuable resource.
<u>Explanation:</u>
Petroleum, a non-renewable fossil fuel has been in great demand as it makes transportation faster. Also we can convert petroleum to different types of liquefied petrol, gasoline and other igniting agents.
Fossil fuels are valuable energy sources because they contain hydrocarbon and other carbon-based materials. From light into heat into electricity, the energy saved with coal and oil arises from the sun, as they arose as plants and animals.
Along with being used as igniting agent, petroleum can also be used for generation of electricity, washing clothes in dry wash, as a lubricant in some of the automobile parts. Also it is used in sports equipment, manufacturing machines as lubricants, carpeting and other every day uses are there for petroleum.
The correct answer is option C, the periodic table and a chemistry website.
Maria is researching a family of elements so besides her school textbook, Maria should refer to the periodic table and a chemistry website.
In the periodic table a family of elements such as the halogen or inert gases are grouped together based on their atomic number and periodicty of their properties. Maria can observe and learn about their periodic properties such as atomic radii, electronegativity, ionization potential, nature of bonding, and more.
Also a chemistry website that discusses the physical and chemical properties of a family of elements would be relevant.
Notice that the oxygen atom produced in the first step of this mechanism is consumed in the second step and therefore does not appear as a product in the overall reaction. Species that are produced in one step and consumed in a subsequent step are called intermediates.
I hope that helps
ps. not my words, my older cousins