Answer:
Helium
Explanation:
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Answer: The reaction has a lower activation energy with the catalyst present than it has without it.
Explanation:
If you project both curves on the Y axis, which represents the amount of energy required for activating the reaction, you can see that the red curve has a lower value than the black curve. This makes perfect sense, since the purpose of a catalyst is of lowering the energy required for activating a reaction.
Answer: Option D is the correct answer.
Explanation: A carbon atom is a group 14 element that has atomic number 6. In order to attain stability carbon atom needs to be bonded to four electrons of another atom. A carbon atom usually bonds with another atom by sharing of electrons.
Physical properties are characteristics that describe matter. They include characteristics such as size, shape, color, and mass. These characteristics can be observed or measured without changing the identity of the matter in question.
The ionization energy will increase substantially when 11th electron is removed compared to when the 10th electron is removed.
<h3>What is ionization energy?</h3>
Ionization energy is the energy required to remove one or more electrons from a neutral atom in its gaseous state to form a positively-charged ion.
The ionization energy increases steadily as successive electrons are removed from an atom. A substantial increase in ionization energy occurs with the removal of an electron from a filled inner shell.
The 10th electrons is the last electron in the L shell of atoms. The 11th electron is the first electron in a filled inner shell.
Therefore, ionization energy will increase substantially when 11th electron is removed compared to when the 10th electron is removed.
Note that there was no attached graph and the answer was given based on the general trend observed in ionization energies.
Learn more about ionization energy at: brainly.com/question/1445179
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