Answer: C2H4 + 3O2 → 2CO2 + 2H2O
Explanation:
2Al + 2O2 → 2AlO + O2 Not Balanced Properly: 2Al + O2 = 2AlO
C2H4 + 3O2 → 2CO2 + 2H2O Looks Good
2CH4 + O2 → 2CO + 4H2 Not Correct: CO should be CO2
Ca + O2 → CaOH Not Balanced and No source for the H
Answer:
Tin
Explanation:
Tin is an element which belongs to the carbon family in the periodic table. It lies in group 14 of the periodic table i.e. IV a.
The symbol of Tin is Sn. Tin has 50 electron in total. Its atomic number is 50. The 50 electrons of tin are divided in its five energy shells. The outer most or the valence shell contains 4 electrons in the ground state.
The number of electrons present per shell in tin is : 2, 8, 18, 18, 4.
The electronic configuration of tin is : [Kr] 4d¹⁰5s²5p²
I think the correct answer from the choices listed above is option A. The key characteristic by which Dmitri Mendeleev arranged his periodic table was that the elements are arranged in increasing atomic number. Hope this answers the question.
Answer:
C
cell wall only in plants
chloroplast only in plants
enlarged vacuoles only in plants
cell membrane in both
hope this helps :)
Explanation:
The results of Rutherford's experiment were surprising as most of the alpha particles went straight without any deflection
<h3>Rutherford's Gold Foil experiment:</h3>
During the experiment, Rutherford directed beams of alpha particles at the thin gold foil and observed the following things:
- Most of the alpha particles passed straight without any deflection
- Few alpha particles got deflected from their paths on small angles
- Very few alpha particles got deflected from their paths on very large angles
<h3>Results of the experiment:</h3>
- Most of the space inside an atom is empty
- The center of the atom is occupied by a tiny positively charged dense body called a nucleus. Most of the mass of the atom is concentrated in the nucleus
- The electrons revolve around the nucleus in circular orbits and are called planetary electrons
Thus, the results of the experiment were surprising due to the above-stated facts.
Learn more about Rutherford's Gold Foil experiment:
brainly.com/question/4113533
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