7 protons means that N atom has 7 electrons
1st level can have only 2 e⁻, and we have left over of 7-2=5 e⁻, that will go on the second level.
B. 2,5
Awnser: C. petrolium
See, petroleum (i.e. oil) is transformed into gasoline.
"Sometimes, petroleum and crude oil are used to mean the same thing, but petroleum itself is a broad range of petroleum products including crude oil itself. We use the term 'petroleum products after crude oil is refined in a factory." - <span>www.eschooltoday.com/energy/non-renewable-energy/what-is-petroleum.html</span>
Answer:
Coal is a fossil fuel and is the altered remains of prehistoric vegetation that originally accumulated in swamps and peat bogs
Answer:
Straight line shows that the outside atom is in the same plane as the central atom. Dashed lines shows that the outside atom is farther from us than the central atom. (Going into the page). Wedged line shows that the outside atom is closer to us than the central atom. (Coming out of the page)
Explanation:
When showing the 3D structure of molecules, we use dashes, wedges, and straight lines. Below are the functions of each line.
- Straight lines: Straight lines are used to show atoms and bonds that are in the same plane as the central atom.
- Dashed lines: Dashed lines are used to show atoms and bonds that go into the page, behind the plane, away from you. That is this line shows that the outside atom is farther from us than the central atom.
- Wedged lines: Wedged lines show bonds and atoms that come out of the page, in front of the plane, toward you. It shows that the outside atom is closer to us than the central atom.
Answer:
The correct answer is d. 6H20 + 6CO2.
The reactant in the chemical reaction 6H2O + 6CO2 ---> C6H12O6 + 6O2 is 6H20 + 6CO2. Remember that the reactant is always at the left side of the equation. So the correct answer is 6H20 + 6CO2 since it's in the left of the equation. I hope this answer helped you.
Explanation: