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Dafna1 [17]
2 years ago
8

HELP MEEEE

Chemistry
2 answers:
sweet [91]2 years ago
7 0

Answer:

1. A

2. D.

3. A.

Explanation:

Sophie [7]2 years ago
7 0

The definition of eccentricity allows to find the correct answers are:

1.  A. its orbit is a highly elongated ellipsis.

2.  A. 0.9200

3. A. 0.0068

The eccentricity of an ellipse is defined as the relationship between the distance of the semi-major axis (a) and the distance from the center of the ellipse to one of the foci (c)

         \epsilon  = \frac{c}{a}

Where ε is the eccentricity, a and c are the distance to the major axis and the focus, respectively.

Eccentricity values ​​range from ε = 0 for the circumference to ε = 1 to approximate a segment

They indicate several questions

1) What does it mean when the orbital eccentricity of a planet is close to 1?

Checking the answers, the correct one is:

      A. its orbit is a highly elongated ellipsis.

2) Astronomers discover a new comet that follows a highly elliptical orbit. What is its eccentricity likely to be?

The answer is an eccentricity very close to 1, the correct answer is:

     A.  0.9200

3)Venus has the smallest orbital eccentricity of any of the planets. What is the eccentricity of Venus?(1 point)

The planet Venus has an almost circular orbit of the times tabulated, its eccentricity is 0.0068

The correct answer is:

      A.    0.0068

In conclusion, using the definition of eccentricity, we can find the correct answers to the questions:

1.    The correct is :  A. The orbit is a very elongated ellipse

2.   The correct is:   A. 0.9200

3.   The correct is:  A. 0.0068

Learn more here: brainly.com/question/17817893

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Answer:

53.491 g/mol

Explanation:

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Answer:

Explanation:

Salicylic Acid:

Salicylic Acid is an hydroxy acid that is found as a natural compound in plants.  It's IUPAC name is 2-hydroxybenzoic acid. Salicylic acid has an odorless white to light tan solid color. It sinks and mixes very slow with water.

Acid:  An acid is a substance that produce hydrogen ion or proton when dissolved in water

Base: A base is a substance that will neutralize an acid to yield salt and  water

Conjugate Base: This is a substance formed when an acid loses an hydrogen ion or proton when it dissolved in water.

Conjugate Acid: This is a substance formed when a base accept a proton from from any acid, when it dissolved in water.

Reaction between salicylic acid and potassium hydroxide

HOC₆H₄COOH(aq) + KOH(aq) ⇄ HOC₆H₄COOK(aq) + H₂O(l)

Acid ⇒ HOC₆H₄COOH (salicylic acid)

Base ⇒ KOH (potassium hydroxide)

Conjugate acid ⇒ H₂O (water)

conjugate base ⇒ HOC₆H₄COOK (  2-hydroxypotasium benzoate)

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ivann1987 [24]

<u>Answer:</u> The electronic configuration of gallium is written below and number of valence electrons is 3.

<u>Explanation:</u>

Electronic configuration is defined as the representation of electrons around the nucleus of an atom.

Number of electrons in an atom is determined by the atomic number of that atom.

Valence electrons are defined as the electrons present in the outermost shell of an atom.

We are given:

An element Gallium having atomic number as 31.

Number of electrons = 31

Electronic configuration of Gallium is: (Z=31):1s^22s^22p^63s^23p^64s^23d^{10}4p^1

This element has 3 electrons in its outermost shell. So, the number of valence electrons is 3

Hence, the electronic configuration of gallium is written below and number of valence electrons is 3.

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What is the total number of moles of oxygen atoms in 1 mole of N2O3
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3 moles oxgyen atoms in 1 mole .

hope this helps!


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