According to the Rational Root Theorem, what are all the potential rational roots of f(x) = 5x³-7x+11? 0 +1.1.1.5 O 11 0 + 3.1.1.5, 45, +11 5 0 0 ±, ±3. 1. ±1, , 25, ±11

Answer:

option C= O(g) → O+(g) + e-

Explanation:

Definition:

" The ionization energy is the energy required to remove the electron from outer most shell"

First ionization energy:

"It is the amount of energy required to remove the very first electron from valance shell"

it is represented in following equation;

X (g) → X+(g)  + e-

The physical state (g) must be written because ionization process occur  in gaseous phase. The ionization energy always measured in KJ/mol. The ionization energies are always positive because electrons are attracted towards the nucleus and  energy is always require to remove the electron and to overcome the hold of nucleus.

Periodic trend:

As we move down the group the ionization energies decreases with the increase of atomic number because atomic size increases and hold of nucleus or nucleus attraction on valance electron became weaker. that's way less energy is required to remove the electron.

As we move left to right in periodic table the ionization energy increase with increase of atomic number because atomic radius decreases and electrons are attracted towards the nucleus that's way more energy is required to remove the electron.

First ionization energy of oxygen:

O8 = 1s2 2s2 2p4      (1st ionization energy= I.E.= 1310 kJ/mol

The electron is remove from 2p subshell.

The reaction that represents the first ionization of O is c. O(g) → O⁺(g) + e⁻.

The first ionization of an atom is the removal of the most loosely bound electron of an isolated neutral gaseous atom.

Which reaction below represents the first ionization of O?

a. O(g) + e⁻ → O-(g)

NO. It is not an ionization because an electron is gained rather than lost.

b. O⁺(g) + e⁻ → O(g)

NO. It is not an ionization because an electron is gained rather than lost.

c. O(g) → O⁺(g) + e⁻

YES. It concords with the definition of first ionization.

d. O⁻(g) + e- → O²⁻(g)

NO. It is not an ionization because an electron is gained rather than lost.

e. O⁻(g) → O(g) + e⁻

NO. It does not start with a neutral atom.

The reaction that represents the first ionization of O is c. O(g) → O⁺(g) + e⁻.

Answer:

1) Se prohíbe gritar en la biblioteca.

2) Se sirve comida en la cafetería.

3) Se juega fútbol americano en el estadio.

4) Se venden libros en la librería.

5) Se hacen exámenes médicos en la clínica.

Explanation:

1) Shouting in the library is prohibited.

2) Food is served in the cafeteria.

3) American football is played in the stadium.

4) Books are sold in the bookstore.

5) Medical tests are done in the clinic.

An impersonal sentence is one that has no explicit subject and cannot be understood, that is, no element present in the (explicit) sentence performs the function of subject and is not omitted either

Answer:

B. He praises the advantages of being frozen in time.

Explanation:

The speaker praises the advantages of being frozen in time in the main topic of the passage.

"Ode on a Grecian Urn." Is a poem which was composed by a notable English Romantic Poet with the name John Keats.The poem was written in May 1819 and published in Annals of the Fine Arts for 1819.

There are several other "Great odes of 1819), which includes "ode of indolence", "ode to a Nightingale","ode of Melancholy", and lastly "ode of Psyche".

The poem "Ode on a Grecian Urn." Is divided into five stanzas of ten lines each.

We can say the main topic in "Ode on a Grecian Urn" is expressed in the following option:

B. He praises the advantages of being frozen in time.

"Ode on a Grecian Urn"

This poem develops the theme of the transiency of life and mortality. In this particular excerpt, the speaker mentions how the figures will be there forever when he says, "nor ever bid the Spring adieu" and "For ever piping songs for ever new."

The figures painted on the urn, unlike us, will never grow old and die. The speaker sees that as something good. They are forever frozen in time, singing, dancing, feeling happy.

Question 1. Hoy nosotros una reunión familiar (family reunion).

Answer 1: Hoy nosotros tenemos una reunión familiar.

Today we have a family reunion.

Question 2. Yo en autobús de la universidad de Quito.

Answer 2: Yo vengo en autobús de la universidad de Quito.

I come by bus from the University of Quito.

Question 3. Todos mis parientes, excepto mi tío Manolo y su esposa.

Answer 3: Todos mis parientes vienen, excepto mi tío Manolo y su esposa.

All my relatives come, except my uncle Manolo and his wife.

Question 4. Ellos no ganas de venir porque viven en Portoviejo.

Answer 4: Ellos no tienen ganas de venir porque viven en Portoviejo.

They don't feel like coming because they live in Portoviejo.

Question 5. Mi prima Susana y su novio no hasta las ocho porque ella que trabajar.

Answer 5: Mi prima Susana y su novio no vienen hasta las ocho porque ella tiene que trabajar.

My cousin Susana and her boyfriend don't come until eight because she has to work.

Question 6. En las fiestas, mi hermana siempre (always) muy tarde (late).

Answer 6: En las fiestas, mi hermana siempre viene muy tarde.

At parties, my sister always comes too late.

Question 7. Nosotros mucha suerte porque las reuniones son divertidas (fun).

Answer 7: Nosotros tenemos mucha suerte porque las reuniones son divertidas.

We are very lucky because the meetings are fun.

Question 8. Mi madre cree que mis sobrinos son muy simpáticos. Creo que ella razón.  

Answer 8: Mi madre cree que mis sobrinos son muy simpáticos. Creo que ella tiene razón.

My mother thinks my nephews are very nice. I think she's right.

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