Chemistry, 31.01.2020 08:02 matluck7956

In two or more complete sentences, compare petroleum to natural gas. how are they similar? how are they different?

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Similar - Both are organic compounds and fossil fuels
Different - natural gas is made up of lighter organic compounds than petrolium

Answer from: sugandiwoodbine

The difference is that Petroleum is a liquid mixture of complex hydrocarbon compounds; used widely as a fuel source and Natural gas is a mixture of gaseous hydrocarbons located under the surface of Earth, often near petroleum deposits; used as a fuel.

Answer from: Quest

i think so it’s will be b yes i believe its

Answer from: Quest

assuming that your periodic table has eighteen columns, you should highlight the four elements in the third column from the left of the table.

explanation

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the $3d$ have energy higher than those in the $4 s$ orbital while lower than those of the $4 p$ orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the $4s$ orbital is therefore filled right after $3p$ orbitals and before $3 d$ orbitals.

potassium has electron configuration $[\text{ar}] 4 s^{1}$ and calcium $[\text{ar}] 4 s^{2}$ . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration $[\text{ar}] 4 s^{2} \; 3d^{1}$ and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the $ns^{2} \; (n-1) p^{1}$ and should be highlighted as well.

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In two or more complete sentences, compare petroleum to natural gas. how are they similar? how are...